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iDefrag Reviews

5.3.1
10 July 2019

Disk defragmentation and optimization tool.

Pusfarm
24 December 2009

Most helpful

The demo only works on 100MB and smaller drives?? So anyone, like me, who doesn't still have a drive left over from 1997 is basically screwed. That makes this demo useless to me. Coincidentally, it also means it doesn't get purchased.
Like (13)
Version 1.7.2

Read 281 iDefrag User Reviews

Rate this app:

neartheredrocks
09 July 2019
A huge "Thank You" to the developer! I wish you all the best for the future. Both applications, iDefrag and iPartition, are outstanding.
Like (1)
Version 5.3.1
Fariborz
09 July 2019
I did benefit from this nifty utility for many years and now it’s gone for good. At least the developer has been generous enough to offer it for free to those who still use the older Systems. Just go to their site to pick up your free license. Fariborz AMIRSHAHI - Verona (Italy)
Like (5)
Version 5.3.1
2 answer(s)
Pik80
Pik80
09 July 2019
He might as well, seems to have little to loose at this point.
Like
Fariborz
Fariborz
09 July 2019
I don't know, but when a developer like this retreats from the market, it's a great defeat for the Mac community.
Like (1)
djrobmoore
11 May 2019
Free?? Why is it asking me do drop my license when I try to install it?
Like
Version 5.3.0
1 answer(s)
Vitalii@macudate.com
Vitalii@macudate.com
09 July 2019
The license information can be obtained from the Coriolis Systems website
Like (4)
pa-geographer
22 April 2018
From the Coriolis website: "Support for this product has ended. iDefrag works fine on macOS 10.12 and earlier, but has some problems on macOS 10.13 (High Sierra). There will be no further updates or bug fixes; the product will remain available for download and purchase for the benefit of users running earlier versions of the macOS."
Like (2)
Version 5.3.0
ted939
22 January 2018
Hi MU community! I hope someone might be able to advise me here.

I recently upgraded my OS from 10.7 to 10.9.5, and I already had iDefrag 1.7.3 (229), which I'm using now.

As we speak, I'm about 14+ hours into a iDefrag Optimize on a 4TB external drive that only has 650GB used, and the Location Indicator is only about halfway through the populated area of the Whole Disk Display.
I'm wondering: Does this mean I have another 14+ hours left to wait for this, and if so, is this normal/OK for iDefrag to take some 14-28 hours to optimize 650GB on a 4TB drive?!

Here's my setup:

iDefrag
Version: 1.7.3 (229)
Algorithm: Optimize
Class Set: Default
Enable per-class sorting: SELECTED/CHECKED
Skip files that cannot be defragmented due to lack of free space: SELECTED/CHECKED

Computer
Model: Late-2011 MacBook Pro
Processor: 2.5GHz Intel Core i7
Memory: 8 GB 1333 MHz DDR3
OS: 10.9.5 (13F1911)
Startup Drive: 1.05 TB SSD SATA
Connection: MacBook Pro ThunderBolt 1 <--> Elgato ThunderBolt 2

External drive being defragged/optimized
Brand: Seagate
Model: Expansion Portable HDD (STEA4000400)
Size: 4TB
Connection: Seagate's USB 3 <--> Elgato USB 3

Dock/Hub
Brand: Elgato
Model: ThunderBolt 2 Dock

ALSO - Regarding upgrading from iDefrag 1.7.3 to 2.2.8 (per Corialis website suggestion for OS10.9.5):
a. What's the process?
b. What's the cost?
c. How would it benefit me (if at all)?

I look forward to some help, as my work is halted until I finish defragging some drives, and I'm wondering if I need to budget 28 hours of computer downtime per 650GB of hard drive defragging :-|

Thanks!
Like
Version 5.3.0
Frankeed
06 December 2017
Anybody have any benchmarks that show an improvement in drive performance after defragging, as advertised?
Like
Version 5.3.0
1 answer(s)
hughhowlett
hughhowlett
17 April 2018
Yes I do and WOW... I was getting about 90MB/s read and write before in an 8TB drive that is 95% full, and just after 4 hours of defragging (out of what looks like will take days) it is now back up to 170MB/s. Very impressive and surprising! Can't believe I told people "Macs don't need defragging" for so many years!
Like
Gazman
11 August 2017
I haven't tried the software but just wanted to point out that 'defragging' a modern SSD hard drive will have no benefits and will actually decrease the life of your SSD. See http://helpdeskgeek.com/featured-posts/should-you-defrag-an-ssd/ for more info.
Like (1)
Version 5.2.1
Joseluismen
13 May 2017
While it is used the version recommended according to S.O works perfectly. If you install the 5.1.4 (or superior) in Yosemite or El Capitan, can damage the disc, so that there is to reformat and to reinstate everything.The system of updates of the program, must have had this in account.The last compatible version with Yosemite and Capitan is 5.1.3 and now it does not try to update to a later one, as it must be.It is a good program, and it helps enough to maintain discs in sequence. But from time to time, the updates are not without risk. Due to him, I have had problems several times, the last ones with the passage to Yosemite,and it makes a pair of months with these incorrect updates of iDefrag.In addition, it is possible that some problems that I did not know to identify also came to use one more an up-to-date version of the indicated thing.
Like
Version 5.1.8
1 answer(s)
Coriolis Systems Limited
Coriolis Systems Limited
22 May 2017
None of the recent updates will "damage the disk, so that there is to reformat and to reinstate everything". That is not true and not necessary, no matter which version you use, and it's very unhelpful suggesting that it might be, because it causes people who have trivial problems to go reinstalling their machine when they see comments like this.

In particular, IF you have a problem booting into restart-and-defragment mode (which is a problem that is still affecting a handful of users and which we're investigating), the thing to do is to restart the machine *and wait*; it should boot normally, though it might take a little longer than usual. In the unlikely event that it doesn't, PLEASE GET IN TOUCH rather than jumping to the conclusion that you need to reinstall from scratch.
Like (3)
JIMMY2006
25 April 2017
It is very easy to use. Very useful to install it on old Mac hard drive and get more free disk space.
Like (1)
Version 5.1.8
1 answer(s)
Mcr
Mcr
26 April 2017
Like (1)
Eric•Woehler
24 April 2017
Long-time user (since version 1) - using it primarily for a series of external hard drives. I have 8 x 3TB drives for paired backups of my image collection. Lots of file transfers, editing, swapping etc. I use iDefrag to keep the drives in good working order. Every 2 months or so, full defrag helps to maintain drives and all my precious backups in good working order. I was caught up in the registration snafu but all of my experiences with dev over the years has been v positive - I am in Australia and I get a response the same day or within 24h. Recommended software and supoortive dev - worth looking at iDefrag for protecting your drives.
Like (2)
Version 5.1.8
Rjmorita
16 January 2017
Is it still necessary to defragment a drive any more? I've been told that it is not needed if you're running the newer OS such as Sierra. And of course, you cannot (or should not) defragment a SSD.
Like (3)
Version 5.1.7
2 answer(s)
Noraa
Noraa
17 January 2017
macOS does some level of defragmenting automatically, however when working with very large files, things can still get fragmented (there's a short article about that here - http://www.macworld.co.uk/how-to/mac/how-defrag-speed-up-mac-os-x-2016-3600241/). In addition, with larger hard drives, fragmentation is experienced less as there is more overhead to work with when creating new files.

With that being said, if your hard drive is running low on disk space (less than say 20%), fragmentation does have a tendency to occur more as new files are essentially squeezed into whatever available disk space there is - even if that results in fragmentation.

Finally, as you said, there is no point in defragging a SSD - in fact doing so can actively harm the drive and reduce it's life span. With most Macs offering either full SSD or Fusion Drives (SSD/HDD hybrids - that also don't benefit from defragging) dedicated defragmenting tools, such as iDefrag, are becoming less and less needed.
Like (1)
Coriolis Systems Limited
Coriolis Systems Limited
23 January 2017
Our only comment here is that the SSD "lifetime" issue is a bit of a red herring — more of a problem for engineers designing SSDs than for end users at this point. But we agree that defragmenting an SSD is pointless — see

https://coriolis-systems.com/support/2015/3/should-i-defragment-my-ssd
Like (2)
Mikebenda
16 January 2017
Every. Single. Time. I launch this app I am required to find and drag my license key file into the verification window. Every. Single. Time.
Like (1)
Version 5.1.7
2 answer(s)
Fariborz
Fariborz
16 January 2017
They are aware of this issue. If you contact their support team they'll send you a new license key that solves this problem.
Like
Coriolis Systems Limited
Coriolis Systems Limited
23 January 2017
@Mikebenda Please get in touch at help@coriolis-systems.com and we'll try to assist.
Like
henri-spagnolo
15 December 2016
Warning with version 5.1.5. I use an iMac with Sierra 10.12.2. After having updated iDefrag to 5.1.5, the Mac was very slow at startup and also impossible to shutdown. Impossible to run a Disk Utility or OnyX or Time Machine. I have contacted the developer but no news for now.
Like
Version 5.1.3
1 answer(s)
Coriolis Systems Limited
Coriolis Systems Limited
16 January 2017
There are, sadly, two parts to this problem. The first was caused by a problem with either (a) a KEXT not being replaced, or (b) a problem with the code signature on that KEXT. That part was our fault, at least in part, and is fixed in 5.1.7.

The second part is an Apple problem, which causes the KEXT cache rebuild that happens when one of our KEXTs is installed to take hours (sometimes even a couple of days). That's quite unacceptable and we've reported it to Apple as a bug. It should only happen once, however — though there is a workaround on our support site if you're brave enough to reboot into Recovery Mode and enter one line into the Terminal from there.

https://coriolis-systems.com/support/2016/12/after-installing-idefrag-my-machine-takes-long-tim
Like
Levelbest
14 July 2016
I am not pleased with this developers idea of customer loyalty. I have used iDefrag for many years and in truth I find no fault in the way it performs - mostly. I stopped using iDefrag about 5 years ago. I was having a good deal of trouble with it’s licensing and DRM set up. I was using a hackintosh setup and while their DRM was part of the problem, my set up could have contributed to it as well. I finally gave up. I now use an iMac and have returned to the mainstream Mac fold. I am ready to revisit iDefrag as they have continued to improve their software and a few versions have gone by since I was a customer. I am willing to try again if they would offer an upgrade to a former user (and fan). Sadly, they do not. A line was drawn in the sand and some users were left on the other side of the line. Version 1 users must repurchase a license as new. All other versions will qualify for an upgrade price. I wrote the developer and asked to renew, but I was flatly refused. I appreciate that a developer has to earn a living but I also appreciate good customer service. A returning customer after 5 years who left at least in part due to the software having technical difficulties should, in my opinion not have to start over and repurchase a license when upgrade pricing is available. Isn't that at least a part of what upgrades are for, to reward loyalty? Sadly this is not the case with this developer. Your mileage may vary.
Like (1)
Version 5.1.2
3 answer(s)
Wts
Wts
25 August 2016
I was using iDefrag and iPartition for about 5 or more years.

The upgrade price from version 3 ( my last upgrades ) was really not fair.

The developer was extremely arrogant, in our email exchanges. Must be his Scottish background.

I have given up on this developer and his software since TechToolPro 9 can do all that and more.
Like
marcky
marcky
23 December 2016
I had a similar experience. I purchased the previous version at full retail. Although it worked OK on smaller volumes, it corrupted the directories of my larger volumes badly enough that Disk First Aid and DiskWarrior (then a 32-bit app) could not repair them. I was able to reproduce corruption consistently and sent the developer my logs. I ended up wasting a lot of time on this, hoping the problem would be fixed. When that didn't happen, I requested a refund. I never received that refund.

I would be interested in giving iDefrag another chance, but am not willing to spend another $20 for the opportunity to waste more time on it in the hope that the large-volume directory corruption issues have been resolved by now. I asked the developer if he'd be willing to issue me the 5.x upgrade in lieu of the never-issued $40 refund, and all the time I wasted dealing with, and reporting on, the directory corruption problems, but was similarly refused.

So I have been recommending to all my clients that they simply copy their data to a new drive (and then back again, if necessary) as a much safer (and frequently faster) way of defragmenting.

With the new Apple File System, this utility becomes useless, anyway.
Like
Coriolis Systems Limited
Coriolis Systems Limited
16 January 2017
To clarify, owners of iDefrag version 2 (and the Japanese versions 3 and 4, which correspond to international version 2) are eligible to upgrade to version 5 at the reduced price. That's because version 2 was the previous major version.

If you bought iDefrag version 1, that's great, but you had five *years* during which you could have purchased the upgrade to version 2 at a discount if you'd wanted to; if you'd done so immediately prior to the release of version 5, you'd have got a free upgrade to version 5 as well, and saved yourself some money.

As it is, I'm afraid that version owners of version 1 don't qualify for the upgrade pricing. However, it won't cost you significantly more than purchasing the upgrade to version 2 and then an upgrade to version 5 would have done. I don't think we're being unfair here.

To address a couple of other points:

1. Wts — there is no upgrade available from version 3 of iPartition (that's still the current major version), and the upgrade from version 3 of iDefrag only affects those customers who bought in Japan, as that's the only place version 3 existed. So I'm confused. Perhaps you'd like to get in touch with us by e-mail and we can take a look and see what's happened?

2. Marky — I don't recall dealing with a case that fits the description you give above. Version 2 of iDefrag certainly didn't cause corruption of the kind you claim, and had you sent us information indicating significant disk corruption we would have refunded your money *and* fixed the problem, so I'm confused. Perhaps you'd also like to e-mail us with some details and we'll take a look for you.
Like
Markoh
28 June 2016
I wanted to update from 5.1.1 to 5.1.2 a couple of days ago. That was A BIG mistake! For some reason iDefrag wanted me to drag my license into the registration window again. So I did. Nothing happened. I reverted back to 5.1.1 but even then I got the same problems!!! I contacted the developer(s) via E-Mail THREE (3) times already and they have not bothered to get back. And this is supposed to be a good service?!?! Screw that for a joke! If I don't receive an answer from them by the end of this week I will regret having ever supported the developer(s), trash iDefrag completely and look for an alternative. I'm an honest paying customer and I'm pretty pi**ed off. Think twice before buying a license for iDefrag because the support sucks.
Like
Version 5.1.2
1 answer(s)
Markoh
Markoh
30 June 2016
Could a kind admin please remove my previous post? The Coriolis Systems support doesn't suck. However, I do.

~feeling rather stupid
Like
I have been unable to get iDefrag 5.1.2 to download, either from here at MacUpdate or at the Coriolis web site. Seeing these recent reviews I now count myself lucky. Coriolis' notion of "broken license files" sounds more like a broken application problem to me. This is unfortunate as iDefrag has been working well for me for many years now. Until Coriolis has an answer for this problem, or better yet a solution, I will stay with version 5.1.1. Now it may be that most users are not having a problem with iDefrag 5.1.2, but the fact that some people are, and that Coriolis has not seen fit to respond to the issues they raise, is good reason for caution in my opinion. The fact that I cannot even download 5.1.2 only adds to my apprehension. "Caveat emptor."
Like
Version 5.1.2
4 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
03 May 2016
I'm not sure why you aren't able to download, but I wouldn't go on the recent reviews here.

The broken license file issue (from before 5th April 2015) is awkward to explain in detail without going into the workings of our copy protection, which I'm sure you will understand is not something that we want to do here. It does, however, only affect those customers who purchased or were given a free upgrade before 5th April 2015, and the solution is just to re-license the software.

If you *are* affected by that issue, please see our support site for more instructions:

https://coriolis-systems.com/support/2016/4/my-idefrag-5-license-issued-5-april-2015-wont-work
Like
B-Jefferson-Le-Blanc
B-Jefferson-Le-Blanc
04 May 2016
@ Coriolis Systems: Thanks for your reply. The download finally worked today. My iDefrag 5 license is dated September 11, 2015, so it should fall outside the limits of the "broken" license problem. I guess I'll give it a try—on a test partition. If it works I'll report back here. As I will do if it doesn't work. ;-) It may be a few days as I'm still running in OS X 10.9.5, where I'm still using iDefrag 2.2.8. I have upgraded to version 5 for Yosemite and El Capitan, but do not yet work in those systems on a regular basis. By the way, now that I look at it, the jump from version 2.x directly to version 5 is a bit confusing. It made me wonder if I had missed a few upgrades. I looked into it on your web site and discovered I had missed nothing. Still, the jump from 2 to 5 is puzzling.
Like
Coriolis-Systems-Limited
Coriolis-Systems-Limited
04 May 2016
The "jump" from version 2 to version 5 is only a jump if you aren't Japanese. (Incidentally, this is a very common reason for jumps in version numbers; sometimes it makes sense to release new major versions in some markets and not others. In this particular case, it happened because our Japanese distributor was selling boxed copies, and some of the version 2 updates that were free outside of Japan necessitated updated CD/DVDs for compatibility with new machines, hence new boxes, hence a major version update.)
Like
B-Jefferson-Le-Blanc
B-Jefferson-Le-Blanc
04 May 2016
@ Coriolis Systems: Can't argue with that. But that is a very obscure (to the public) aspect of software development. I guess it's too tedious to explain unless someone like me asks. Thanks for the explanation.
Like
Bggale
01 May 2016
DO NOT DOWNLOAD THIS PIECE OF CRAP! I have used iDefrag for years, but as of this version, YOU CANNOT LICENSE THIS VERSION OF THE APP, EVER!!! It will ask you for a license key EVERY TIME YOU LAUNCH IT, and until you find the file, IT WILL LOCK UP YOU MAC!!! You can't even shut it down. I had two licenses, which it took every time (I tried about 10 times). Every time I launched iDefrag, it asked me to find the license file AGAIN! I finally paid for an upgrade, and put the license file they sent me into the iDerag folder in my Library, but even after I browse and find the file, IT STILL ASKS FOR IT EVERY SINGLE TIME I LAUNCH THIS PIECE OF CRAP!!!!!!
Like
Version 5.1.2
1 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
03 May 2016
It's nice of you to be so reasonable and measured.

When you've quite finished, you might care to review the release notes and also this support article:

https://coriolis-systems.com/support/2016/4/my-idefrag-5-license-issued-5-april-2015-wont-work
Like (2)
Andrewrodney
30 April 2016
This dot release (5.1.2) doesn't accept the original License one drag's and drops. Not sure why it would even ask for this since it's a dot release. The previous version, 5.1.0 crashes if one attempts to update from within the app.
Like
Version 5.1.2
3 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
03 May 2016
The licensing problem only affects some customers, and was mentioned in the release notes (it's even written just above the comments here!) as well as in a support article, here:

https://coriolis-systems.com/support/2016/4/my-idefrag-5-license-issued-5-april-2015-wont-work
Like
Andrewrodney
Andrewrodney
03 May 2016
You had the same licensing problem last year! I've still got your emai with a newer (?) license PNG:
Your iDefrag 5 License (an apology) 3/4/2015.
Nice product but your licensing schema is a mess guys!

Oh, and the last version crashes when attempting to update from that older version! I sent a report via your reporting system two days ago, nothing back. So yeah, messy, very messy.
Like
Coriolis-Systems-Limited
Coriolis-Systems-Limited
03 May 2016
This *is* the licensing problem from last year. If you read the support article or the release notes, you would know that the problem we're trying to address here is that too many people didn't replace the broken licenses from back then, in spite of the instructions we sent out. I'm sorry that this has affected you, as you were clearly one of the people who did follow the instructions, but the alternative is a never-ending series of bug reports from people reporting symptoms that occur because they are using a broken license that they've already been told not to use.

As far as bug reports go, we no longer reply to those individually, but we do look at them. We're aware that the built-in software update is (again :-() not working.
Like
rick-23
29 March 2016
I'm not sure this is the proper place to ask this. However, here goes. I have an early 2011 MacBook Pro 17" with 252 GB SSD and 8 GB Ram with OS 10.10.5. I am taking some time to delete duplicate files I have filed in several places and open up the space available. In doing this I noted that the available space DECREASED as I was deleting files. I thought this might be due to holding something in memory. I shut down completely & restarted. No difference. I went from about 110.34 GB available to 109.96 GB. Today I began again starting at 109.96 GB and watched. No decrease OR increase in the available after deleting a number of files. Then when I tried to rename a file, and was told I was unable to do so because I was out of memory. This after doing that a few times already without problem. It has been years (not since the old 8600 machine) since I had to defrag but I was thinking I might need to do that. Now with the SSD and the OS X system I don't defrag and it is no longer presented as part of the OS. While searching for an answer, I ended up here. But so far I have no answer as to what is going on except that I'm beginning to wonder if my eyes are playing tricks on me or I'm finally just going nuts. Does anyone here have any suggestions or locations to go to find answers about this? Hopefully on one will confirm my last two thoughts about possibilities above.
Like
Version 5.1.1
2 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
29 April 2016
You shouldn't need to defragment an SSD. The most likely explanation for the space going down while you were deleting files is that something else was busy creating or extending other files. As for the "out of memory" message, that does seem odd; you’d have to have an awful lot of software open at the same time to get that on a modern Mac.
Like (1)
SegN3rd
SegN3rd
29 April 2016
Defragging an SSD is actually bad for it. Have you tried just running Disk Utility (Repair Disk) on it? I occasionally see glitches that cause disk space to "disappear," and often DU fixes them.

Remember that you can hold down command-option-R at startup to boot into recovery mode, which includes DU.
Like
IvoryBlues
17 March 2016
Hi! V. 5.1.1 has been out since December(?) Why is it showing up on Macupdate now? I'm on 10.10.5 and neither 5.0.1 or 5.1.1, boot into iDefrag. The computer restarts and goes right into Finder. I've emailed Coriolis 2 months ago, but never heard back which is unusual. Anyone with similar experience? Thank you
Like
Version 5.1.1
1 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
29 April 2016
I'm sure we must have replied to you, or at least *tried* to reply to you; most likely either you have your reply address set incorrectly in your e-mail software (not uncommon), or there is a junk filter problem happening at your end. One very common reason for the latter is if you are using mail forwarding; unless it's set-up right, the junk filter at the final destination may throw mail on the floor… you either need the forwarder to do "sender rewriting", or you need the final destination to *know* about the forwarder.

As a general aside, if you do find that we haven't replied to your e-mails, you could always send us a message via Twitter.

As for iDefrag, I'd suggest going to System Preferences' Startup Disk pane and clicking on the start-up disk. Why? Because that behaviour suggests that the startup disk is set wrong in the NVRAM; iDefrag needs to know which disk the machine will start from in order to do its reboot-and-defragment trick, and if the machine doesn't start from the disk that's set in the NVRAM, iDefrag will have tried to set the wrong disk up to do that. Clicking on the start-up disk, even if it's already selected, will cause OS X to update the settings, and hopefully that will fix the problem.
Like (1)
Pypo
14 March 2016
Attention because Coriolis is not serious! I paid 1x Upgrade and have never received my new license by email. They say that it is the fault of your provider and do not return a copy. Then despite numerous reminders, they do not respond and do not repay you !!! Crooks ... I'm furious!
Like (1)
Version 5.1.1
7 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
14 March 2016
The background to this is that this user has an wanadoo.fr e-mail address, and right now, Orange, whose servers are used for both orange.fr and wanadoo.fr e-mail addresses, are silently dropping e-mail from us for some reason.

We know *for certain* that the necessary e-mail is getting to their mail servers properly, so we know *for certain* that the problem is at Orange.

While we’re sorry that we weren’t able to deal with this customer’s problem any faster, we would strongly encourage users with orange.fr and wanadoo.fr e-mail addresses to (a) get in touch with Orange/Wanadoo and let them know about this problem, and (b) to provide us with alternative contact details as soon as possible so that this problem can be resolved.

I’ll finish by saying that I think it’s quite unfair to rate our software on the basis of the poor performance of a free e-mail provider, which is what has happened here. But MacUpdate users will, hopefully, read our remarks and understand the situation.
Like (4)
Pypo
Pypo
14 March 2016
For what I blame you, it is your lack of fast communication! It was necessary to you 9 days to find a solution. You had asked me for another email address than I gave you after 3 days. As customer, I did not put 9 days to pay you in total safety for you by CB. Hope I am very clear!?
Like
Coriolis-Systems-Limited
Coriolis-Systems-Limited
14 March 2016
We’ve already apologised for not dealing with your situation faster, but as we have repeatedly told you, you would have had your license details immediately were it not for the actions of your mail provider, orange.fr, and we think it’s quite wrong of you to give our software a low mark because of a problem with your e-mail provider.
Like (1)
Pypo
Pypo
14 March 2016
Orange.fr ... low mark ??? Are you crazy !!! When I paid Upgrade iDefrag, I also bought another sofware and have had no problems as always. You are therefore the only ones having this problem. It is doubtful!
I do not like the way you talk to a customer who is very disrespectful. I am the asshole, guilty of everything!? You are not a master and I not a student at school.
Good advice : You should change professions.
This is the last time I buy a Coriolis product and as a journalist in France, I will know how you treat your customers ...
Like
Pypo
Pypo
14 March 2016
Pour les lecteurs français : Je précise qu'à la validation de mon achat, le site Coriolis marquait 'que leur serveur pouvait rencontrer des problèmes...'. Je n'ai pas fait de capture d'écran mais j'ai trouvé cela très curieux.
Enfin les propos du développeur qui ose parler d'Orange comme un fournisseur 'bas de gamme' alors qu'elle est 7e mondiale... laisse voir le mépris qu'il porte à ses clients en reportant les fautes sur ceux-ci !
Bref, futur client... passez votre chemin.
Like
zo219
zo219
15 March 2016
This is such a drag. Reading thru one guy’s problems with Coriolis that ought to be conducted by email. This site, here, is for reviews and comments on the app. Duh.
Like (2)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
16 March 2016
@zo219 We'd obviously have preferred it not to end up here as well.
Like (2)
Jokyo
06 January 2016
This software is mostly irrelevant in these days of modern computers. It is based on psychological weaknesses or neurosis in it's users. If you really want to improve you HD performance try DiskWarrior and Onyx.
Like
Version 5.1.0
1 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
14 March 2016
If you’re talking about the growing prevalence of SSDs, we agree. See

https://coriolis-systems.com/support/2015/3/should-i-defragment-my-ssd

But if you’re talking spinning disks, the performance problems associated with them have not gone away, nor is there any sign that they will do so in the immediate future.
Like (1)
Eric•Woehler
14 November 2015
I use this app frequently and can recommend most highly. I have 18TB of large HDDs (6 x 3TBs) for my digital image archive and 4 or 5 'baby' HDDs (WD 1 and 2 TB portables for backing up images while out on in the 'field') and use iDefrag regularly to maintain my drives, optimising the disk space available and ensuring high reliability of drives. Plenty of info/advice on why not to use defraggers on SDDs, but I believe most of us are still using/relying upon HDDs. Essential app for me and with plenty of options as to defrag operations, useful for all.
Like (2)
Version 5.1.0
Mikebenda
14 November 2015
"The update did not decompress properly; this may mean that the download was corrupted. Please retry the update, and if it fails again, notify the developer." I've tried updating from within the application twice. This doesn't instill confidence in a program that touches every file on my hard drive. Other than this, a good application that I've used for years.
Like
Version 5.1.0
2 answer(s)
Mikebenda
Mikebenda
14 November 2015
I ended up downloading it from this site and installing it. It works fine.
Like
Coriolis-Systems-Limited
Coriolis-Systems-Limited
17 November 2015
Sorry about this… it looks like there’s some problem with the software update system. We may still have that problem in 5.1.0, so it might be that the next update needs to be downloaded manually also. In the meantime, please just download from the iDefrag web page instead.
Like
NedC
13 November 2015
I stand corrected. I seems to work even with this error message. THIS UPDATE DID NOT DECOMPRESS PROPERLY: POSSIBLY CORRUPTED. PLEASE RETRY THE UPDATE, AND IF IT FAILS AGAIN, NOTIFY THE DEVELOPER. NED
Like
Version 5.1.0
NedC
13 November 2015
TRIED 5 TIMERS WITH THIS UPGRADE WITH NO SUCCESS. MESSAGE ON SCREEN WAS TO CONTACT THE DEVELOPER AND I DID. NED C
Like
Version 5.1.0
sambear1965
07 October 2015
Can no longer use my purchased 2.2.6 version, has worked fine for ages, after a re-install of OS X just get asked to login for a key or something and the account page doesn't exist anymore. I am forced to upgrade to this version 5 ? Bully tactics. I'm upgrading to SSD anyway so no worries really, but liked to defrag my big old hard drives. I'll move on I think...
Like
Version 5.0.1
1 answer(s)
Coriolis-Systems-Limited
Coriolis-Systems-Limited
13 November 2015
No, you aren’t forced to upgrade. Most likely you’re having the problem from

https://coriolis-systems.com/support/2015/4/idefrag-asking-key-file

and just need to download a fresh copy (probably of 2.2.8, actually) from

https://coriolis-systems.com/support/2015/3/which-version-idefrag-do-i-need-os-x-10x
Like (1)
Wts
11 September 2015
I have a paid/registered copy of this application. However i am not exactly sure that it is really required in the scheme of MacOS 10 or even 9 namely because as soon as you defrag and start adding or deleting files the hard drive becomes fragmented. As best as i understand in my research of Mac OS 9 and 10 the optimization of the applications/files is done for you when you run Apple's Disk Utilities or even when you install Apple's applications. For example installing a Combo update. Therefore running a "defrag" hard drive is a waste of my time. My wife has used Macintosh computers for more then 25 years and she has never worried or done any sort of fragmentation. She only runs Apple's Disk Utilities to repair permissions after every installation of a new programme or update.
Like (2)
Version 5.0.1
1 answer(s)
FranklinB3179
FranklinB3179
13 November 2015
Your research skills and comment is a waste of everyone's time! The Mac OS does not defragment the entire drive. The OS optimizes files under 20 mb and only in the metadata zone. The OS also does not sort files by priority nor does it maintain free contagious space efficiently . Had you done some meaningful research or read prior comments you might have read there are merits of defragmenting a drive.
1: A reduced delay starting your Mac. The older the Mac the more noticeable a difference
2: Reduced delays launching applications
3: Reduced delays reading large audio and video files
4: Increased odds of data recovery when a drive is defragmented versus a poorly maintained drive like your 25 year end user wife's drive

I do not work for this developer and I do not own this product. My brother did purchase the product and has used it annually on my entire family's drives for many years with the same result. Our Macs feel like new Macs do after defragmenting the drives.
Like (1)
Derekcurrie
08 March 2015
Just to note that iDefrag actually sells for £22.95. Currency conversion rates fluctuate. £22.95 currently converts to $34.50. Add any credit card fees. I wish they offered PayPal payment.
Like
Version 5.0.0
1 answer(s)
Alastairh
Alastairh
08 March 2015
You can choose which currency you pay in; we fix prices in USD, GBP and EUR. The prices are approximately aligned, but obviously they do drift a little with exchange rate changes. It’s *usually* better to pay in the currency in which your card account is denominated if possible, because your card company will charge you (either via a spread on the exchange rate or via a fixed transaction fee) if you do anything else.

As for PayPal, I’m afraid that, like a lot of businesses, we’ve tried accepting PayPal payments in the past and found PayPal fairly infuriating to deal with. If their behaviour towards merchants was more helpful and less arbitrary, we might consider it again. (Our experience wasn’t as bad as some of the horror stories you hear, but we did have problems that you simply don’t get accepting payments by any other method.)
Like
Drscott
06 March 2015
After upgrading to version 5.0, iDefrag crashed during a full optimization and trashed my drive. Other drive utilities could not repair it. Luckily, I had a backup or this could have been a complete disaster. Coriolis Systems explained the crash as being due to bad license files and issued an upgraded license file. While I've used iDefrag without any problems for years, crashing and losing a drive because a png image of a license is corrupted is inexcusable. iDefrag should have immediately quit without starting the optimization. I'm extremely hesitant to even try running iDefrag again. This is my last update.
Like (4)
Version 5.0.0
4 answer(s)
Alastairh
Alastairh
07 March 2015
We’re very sorry to hear that you had problems as a result of the license issue, but we suspect that the disk *was* repairable — though the problem may very well not have been filesystem corruption, which obviously means that disk repair utilities won’t be of use.

We’d very much like to hear more about what actually happened; please do get in touch if you haven’t already.

Finally, to anyone else who thinks they have a serious problem after using one of our products: don't wipe your disk or reinstall from a backup without talking to us first! Often the problem you’re having is not as severe as you think.
Like
mono38
mono38
18 March 2015
I had the same problem. A new start was no longer possible. I started my MacBook Pro in safe mode and then I could start again normally.
Like (2)
Drscott
Drscott
18 March 2015
I really can't add anything at this point. I started iDefrag and checked up on it hours later to find that it had crashed. I'll search for a crash report and send it to you if I find one. Maybe there'll be something useful in it that can help you.
Like (2)
The-Equalizer
The-Equalizer
01 September 2015
Same thing happened to me when defragging an external HD. nearly lost all my wedding and baby pictures. Luckily, TechTool managed to recover/repair the trashed drive. Not a re-assuring experience so I'm very nervous about using this now.
Like (1)
Hilbo60
04 March 2015
It would seem that replacing the license has done the trick, I have successfully defragged two 20Gb drives and one 182Gb drive today with absolutely no problems whatsoever. I now feel confident in using the App on my main drive again, (of course, I do have a backup!). iDefrag has been my goto program for defragging since version 1 and hopefully will be for a long time to come.
Like (1)
Version 5.0.0
Hilbo60
04 March 2015
Can happily report that having defragged two small drives with my re-licensed version 5, it now appears to be working correctly.
Am now in the process of defragging much larger drive, will report upon conclusion.
Like (1)
Version 5.0.0
2 answer(s)
Markoh
Markoh
04 March 2015
Same here.
Like
Andrewrodney
Andrewrodney
04 March 2015
Seems to working here as well. Still not finished but the process has gone far longer than yesterday with the updated license sent from publisher.
Like (1)
Andrewrodney
04 March 2015
Upgraded to day to 5.0. Tried first a full defrag and then optimization on a secondary drive I use for achieved data. Application crashed both times. When I tried to send a report to Coriolis both times, that failed too. Not a good sign!
Like (4)
Version 5.0.0
5 answer(s)
Alastairh
Alastairh
04 March 2015
Sorry about this. Please can you e-mail the crash report directly to us at help@coriolis-systems.com?
Like (1)
WetNet
WetNet
04 March 2015
I have the same exact problem also. Tried on two different external drives with the same results. Already sent a report to the Coriolis devs so hope there is a resolution soon.
Like (4)
Markoh
Markoh
04 March 2015
I have the EXACT same problem. iDefrag v5.0 crashes when doing a full defrag, and I cannot send crash reports.

I'm so glad I upgraded to v5.0 :D
Like (3)
Alastairh
Alastairh
04 March 2015
We’re aware of this problem and we’re looking into it as a matter of urgency. We’ll post more when we have a solution.
Like (2)
Alastairh
Alastairh
04 March 2015
This was caused by a license generation problem on our server. We’re *really* sorry about this; we’ve sent everyone who’s got an iDefrag 5 license an e-mail with a new license file in it and some instructions to remove the existing license.
Like (3)
gryphonent
03 March 2015
iDefrag 5?????? Either I missed something along the road or I’m not good at math. Last up-to-date version running just fine under Yosemite 10.10.3 was 1.7.3., of which I’ve registered version 1.0 some 11 years ago and which has served me well throughout all MacOS X iterations. I don’t mind paying for an upgrade, but what justifies the jump to 5? Or the upgrade price of USD 20 for that matter? Here’s what’s “changed” since 1.7.3: + Fully OS X 10.10 Yosemite compatible version. Ahem, the last version was running fine without problems. Just as a sidenote. + New Yosemite-style UI. Couldn’t care less. + New “Selected Files” algorithm. The original algorithms are just fine. I’ve never done anything but a “full defrag” anyway. And everybody I know hasn’t changed to another algorithm either all those years. + New, rewritten documentation. Yawn, who cares? + Better handling of bad blocks. Yeah, nice to have. But again, is it such a major step forward? iDefrag was pretty good at handling bad blocks already. + Improved support for Retina displays. Who is looking at the app when it does it’s tedious job? I couldn’t care less for Retina support. + Simpler, easier-to-understand statistics What statistics? I’ve never read them anyway. Overall, this is a weak upgrade at a hefty price tag. I’ll stay away from it and suggest to stick with 1.7.3 for the time being.
Like (3)
Version 5.0.0
8 answer(s)
sjk
sjk
04 March 2015
> Last up-to-date version running just fine under Yosemite 10.10.3 was 1.7.3.

Version 2.2.8, which can be seen in previous comments here, is the most recent version before 5.0.
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RavenNevermore
RavenNevermore
04 March 2015
The last version was 2.2.8. That's the one I have installed. Not sure how they got to 5! There was no 3 or 4. The upgrade is just $19.95.
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gryphonent
gryphonent
04 March 2015
Mea culpa. I’m running 2.2.8 as well. Was looking at my information stored on 1Password before writing the comment. Anyways, I still feel that the upgrade price isn’t justified for the tiny changes made here. Sorry.
Like (1)
Alastairh
Alastairh
04 March 2015
2.2.8 actually has a number of problems on Yosemite. The major ones are:

Quick (online) mode doesn't work properly.
The reboot-and-defragment mode won’t work.
The Create Boot Disk option will produce a boot disk that won’t work.

For some people, these aren’t a huge problem — it depends on how you’re using iDefrag — and if you don’t think the new features are worth upgrading then that’s fine, stick with the old version.

I should add that fixing the above three items (particularly the Create Boot Disk and reboot-and-defragment options) was a *lot* of work. I know they might look like little things on paper, but reboot-and-defragment on Yosemite works rather differently (under the covers) to the way it worked on previous iterations of Mac OS X.
Like (1)
Mikebenda
Mikebenda
04 March 2015
What's New:
Improved support for Retina displays.

The Retina display is on the MacBook Pro (which has an SSD drive) and on the 5K iMac (which has a Fusion Drive — part SSD drive).

From what I understand, SSD drives should never be defragmented. Why is this a feature?

I've been using this app for years and really like it, but only need to use it occasionally. To be honest, the upgrade price of $20 (half price) seems a bit steep.
Like (1)
Alastairh
Alastairh
05 March 2015
@Mikebenda: It is true that the built-in devices on the Retina systems are SSDs, but that doesn’t preclude attaching spinning disk storage to them (e.g. via Thunderbolt).

As for saying that SSDs “should never be defragmented”, that isn’t quite our position, but we certainly wouldn’t recommend defragmenting SSDs. See https://coriolis.zendesk.com/hc/en-gb/articles/200392472-Should-I-defragment-my-SSD-

Defragmenting Fusion Drives is an interesting question. I’m far from certain whether it’s worthwhile or not; the Fusion Drive is quite an unusual storage device in many respects. It certainly doesn’t hurt, but I’m not sure whether it helps either. If I had the time I might try measuring it.
Like (1)
Mikebenda
Mikebenda
06 March 2015
Thanks for clearing that up. Defragmenting external drives certainly makes sense.
Like
Brookhaven
Brookhaven
20 April 2015
Try this link for info on defraying SSDs
http://coriolis-systems.com/support/2015/3/should-i-defragment-my-ssd
Like
I've had no trouble with iDefrag 2.2.8. I used it recently to defrag and reorder the files on the 1GB Fusion Drive in my 2013 27" iMac. It restored scattered system and application files to the 120GB SSD portion of the drive. As a result, my system runs faster and apps start more quickly - as they should. I had previously been using TechTool Pro to defrag my drives, until I noticed that it had no file priority options. iDefrag offers a number of these - as the old Norton Utilities did. On a stand-alone SSD or HDD this might not make much of a difference, but the performance difference between the two elements of a Fusion Drive is significant. As for iDefrag version 5, if you are currently using Yosemite, my sympathies. In case you hadn't noticed, it's still effectively in beta; the OS X 10.10.3 update has just been released to the general public for beta testing, as the first iterations of Yosemite were. Now, six months after it supposedly came out of beta, Yosemite is still not ready for prime time. As a result I won't be upgrading my mains system until I read reports from early adopters that version 10.10.3 is stable and all, or at least most, of the persistent bugs have been fixed. Because I upgraded to iDefrag 2.2.8 not long ago, and am still running in Mavericks, I will have no need for version 5 any time soon. When the time does come for me to move to Yosemite, I will consider iDefrag 5. In the meantime, iDefrag 5 has arrived late only for those brave enough to have migrated to an unfinished version of OS X. For the rest of us the delay, if you can call it that, has been no inconvenience at all.
Like (1)
Version 5.0.0
Alastairh
03 March 2015
We’ve had a few queries from people who’ve been sent free upgrades; if you purchased iDefrag 2 after 1st September 2014, you will have had an e-mail from us with an iDefrag 5 license in it. This is normal — we always hand out free upgrade to people who purchase close to the date of a new release, though in this case we’ve gone a bit further than usual because of Yosemite.

Anyway, if you’re lucky enough to have one of these, it’s free, you don’t need to pay anything for it, just go and download the new version.

Also, some of the people who received this e-mail and tried to activate straight away might have had problems. If you did, please try again; it's probably fixed already.
Like (1)
Version 5.0.0
Hilbo60
01 March 2015
Just what is the problem with the 'forthcoming' Yosemite-compatable iDefrag 5? Yosemite has now been out for a good 5 months, 'Drive Genius' is able to defrag yosemite drives, as things stand, we only have another 7 months or so before the next OS release, are we being asked to pay for an upgrade from version 2 to 5 for software that may only run on our Macs for little more than half a year? Now we are told that, quote: Coriolis 'are trying to get their new website up and running, so that they can release the new version', since when was a new version of software reliant upon an updated website? I'm afraid that Coriolis appear to have dropped the ball here!
Like (2)
Version 2.2.8
9 answer(s)
Alastairh
Alastairh
03 March 2015
OK, so first off, let’s not beat about the bush here. Apple made a lot of changes to the boot process in Yosemite, as well as some to code signing, and those affected iDefrag rather more than other developers’ applications because of what it does. Some of those changes weren’t present in earlier seeds, and what with a house move and a cock-up from British Telecom that meant they cut our Internet connection off early (which left us using 3G mobile Internet), we were rather restricted in the amount of testing we could do prior to the Yosemite release.

On top of that, Apple back-ported some of the code signing problems into 10.9.5, so we had to release updates for all of our previous products to make them work there.

Additionally, there were some regulatory changes (PCI-DSS and the European Union’s VAT changes) that kicked in on the 1st of January that we had to deal with — and in terms of the VAT changes we’ve actually been helping HMRC (and other businesses).

As far as iDefrag 5 being dependent on the website, that isn’t actually all that unusual. What’s unusual is that we have so much external pressure to release iDefrag 5 before we were good and ready — this doesn’t happen to most other application developers because their software isn’t as low-level and so they typically don’t need to release updates to cope with new versions of OS X. The reason it’s tied to the new website is that the website is where the implementation of the licensing system sits. The new website implements the new image-based licensing system. The old one does not, and it would have been difficult to shoehorn it in to what had become an accretion of old and rather crufty code. The old site was built with PHP, C (yes, C), some Python servers to take on background tasks for the PHP, various scripts and a large smattering of Apache rewrite rules (including some that rewrite via C programs).

So, you might well say that we dropped the ball, that we should have been ready when Apple released Yosemite, etc…, etc…, but the reality is that iDefrag 5 (and the new website) have been a lot of work at a time when we’re short-handed and in spite of a number of things that have made life harder for us. Looking back (iDefrag 5 is now released), I don't see how we could have got to where we are now any faster than we did.
Like (1)
Hilbo60
Hilbo60
03 March 2015
I stand corrected and also very humbled, my apologies to you and your team.
I now understand a little more of the background to all of this and know that after all your other problems the website was causing issues, as I conversed with you through Twitter this very morning.
I have now bought and downloaded the upgrade which is running fine, in fact I am just about to use it for the first time.
To reiterate, my apologies for my comments which were made in ignorance of the facts, but I believe that I was only voicing what many users may have been thinking as I am sure you would agree, a maintenance app such as iDefrag is sorely missed when it's not available, this is not just a case of impatience. Notwithstanding, I commend you for the attempts at keeping things going with the series of beta issues.
Like (2)
Pik80
Pik80
03 March 2015
Hilbo keep in mind that not everyone updates when a major new OS comes out. There is currently a large percentage of people not on Yosemite. I only installed the update a few weeks ago. Holding off on major OS updates is usually a good strategy anyways.
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Wts
Wts
03 March 2015
Honestly, I found Coriolis defrag version 2 a huge waste of money and a huge waste of time running the defrag programme not only in Mavericks and also Yosemite.

The moment after you defrag a the hard drive and start to use it by adding or deleting files the hard drive is fragmented, again.

Also the upgrade price to version 5 is not worth it considering the ever changing unix system of OS Yosemite.

When ever i get silly thoughts about buying these types of programmes I think of my wife because she simply uses her computer day in and day out and never buying or running any commercial disk repair programmes. She only uses Apple's Disk Utility to repair permissions and repair disk. She also notes that Apple's update programmes does all that for her. She may be correct.
Like
Hilbo60
Hilbo60
03 March 2015
What a Day! after the website had been sorted and I'd managed to actually download the App, it crashed on me mid-defrag!, clicked the button to send the report to Coriolis and that crashed!, so, I copied the whole report to the clipboard to send an email to them, but now can't find their support address.
Think it's going to be back to Drive Genius!
Like (1)
Mcd3
Mcd3
04 March 2015
all I see are 'excuses'-not very *professional*-WAIT, work the kinks out with OS 10.10. get your ISP troubles worked out and THEN release iDefrag 5. Blaming others for your problems....so any way i have 2.2.4, which i last upgraded to 2.2.8-but my password to Coriolis is not working and I've received no new password from them -not even in spam-cant even upgrade
Like (1)
Alastairh
Alastairh
04 March 2015
@Hilbo60: I've made our e-mail address more obvious on our website. As for the crash reporter, I’m not sure why that happened, but I have to say that I’m intending to replace the crash reporter with something better as soon as I get the time (the only reason this didn’t happen for the 5.0.0 release was that I didn’t think the large number of people clamouring for Yosemite support would want to wait longer for this change).
Like
Alastairh
Alastairh
04 March 2015
@Mcd3: There’s just no pleasing some people.

I just wanted to set the record straight on what actually happened and why it “took so long”. And actually, we *did* do what you suggest (wait, work out kinks, then release), so I'm not sure what basis you have for your criticism. That Hilbo60 and a couple of others have seen crashes is unfortunate — we have been running a public beta since December, and I think we had pretty much everything that was reported to us ironed out for the release (give or take… e.g. I know there’s a problem with tooltips flashing inexplicably under certain circumstances). It is, however, perhaps unsurprising that when the number of users running a piece of software suddenly multiplies by a significant factor, you see additional problems that weren't apparent previously. We’ll get the crash logs, look at what went wrong and see where we go from there.

Also, we don’t send “spam”, which is probably why you don’t have any from us.

As far as lost sets of log-in details go, it’s really up to you to keep track of them, and while we’re happy to help locate your details for you if you do lose them, you can’t really blame us if you’re unable to upgrade because you’ve lost them. If you are in that situation, please e-mail help@coriolis-systems.com and we’ll get back to you with the necessary information, though note we have quite a large support queue at the moment, so you’ll be in for a bit of a wait.
Like
Alastairh
Alastairh
04 March 2015
@Hilbo60: I think the crashing problem you saw is the same one that lots of other people have reported. We’re e-mailing everyone who has an iDefrag 5 license to explain; you should see the e-mail shortly.
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Macguruguy
25 November 2014
When is this going to be Yosemite compatible?
Like (2)
Version 2.2.8
1 answer(s)
Alastairh
Alastairh
03 March 2015
Today, that's when.
Like (1)
Alastairh
15 September 2014
If you’re having difficulty updating to version 2.2.8, please see our blog post, here: http://www.coriolis-systems.com/blog/2014/09/gatekeeper-and-os-x-1095/ which explains what’s going on.
Like
Version 2.2.8
3 answer(s)
IvoryBlues
IvoryBlues
17 October 2014
Would iDefrag 2.2.8 run on Yosemite?
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gary-22
gary-22
03 March 2015
I see no way to login to my account and download version 2.2.8 as I have done previously with 2.x releases.
Like
Alastairh
Alastairh
03 March 2015
@gary

Right now, you can't, because in order to get iDefrag 5 and the new site up and running as quickly as possible I haven’t done everything I wanted, and that includes providing access to back-versions.

Back-version downloads *will* be coming back shortly, but I need to clear some support e-mail before doing anything else.

If someone has an especially urgent need for a back-version download, I can organise it, but you’ll need to e-mail help@coriolis-systems.com.
Like
Jazzyguy
14 September 2014
Outstanding application in this iteration it is superb. I just did the full defray and I would expect great speed as I did many times before. It works on 10.6.8 as well. I agree with RavenNevormore that this is a great application and worthy of 5 Stars or more.
Like
Version 2.2.8
1 answer(s)
Jazzyguy
Jazzyguy
14 September 2014
That should read defrag not defray.The speller got me!
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DavyB
14 September 2014
The download tha tMacUpdate has is no use to anyone since it is NOT iDefrag but IDefrag_demo.app that comes out of the zip file fil
Like
Version 2.2.8
1 answer(s)
DavyB
DavyB
14 September 2014
The only way you will get iDefrag is to login to the Coriolis website and get it fem there. Only users that have paid will have a login on the site.!!
Like
David-Shanoff
13 September 2014
I paid for iDefrag 2.2.6. Do I have to pay again for the update to 2.2.8?
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Version 2.2.8
4 answer(s)
Mcr
Mcr
14 September 2014
No you should not. When you purchased, you likely had to give an email address and created a login. If you go here:
https://secure.coriolis-systems.com/login.php

login, once in, are able to redownload all your purchased and registered products. These are the full versions, not the demo. The demo will NOT upgrade a registered copy.
Like
Mcr
Mcr
14 September 2014
( addon to previous message) I purchased iDefrag 2.0 back in March 2010, I've gotten every 2.x.x update since then, no charge, by logging into my account as described previously.
Like
David-Shanoff
David-Shanoff
14 September 2014
Thanks for the information. All is well.
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RavenNevermore
RavenNevermore
14 September 2014
It updates from within the app. For some reason the first time I launched it "Check for Updates" was grayed out, but it wasn't after I quit it and launched it again.

But it crashes when installing the update for me, but then I am on OS X 10.10, and they did warn it's not compatible. I'm going to log into heir site and download the update that way.
Like
Abramurkwian
13 September 2014
I am not able to upgrade from version 2.2.4 - the installer destroys original app and politely informs "Unfortunately, your copy of iDefrag has become corrupted and it is not possible to continue.(...)". Mac Pro/12 cores, OSX 10.9.4
Like
Version 2.2.8
4 answer(s)
Mcr
Mcr
14 September 2014
No you should not. When you purchased, you likely had to give an email address and created a login. If you go here:
https://secure.coriolis-systems.com/login.php

login, once in, are able to redownload all your purchased and registered products. These are the full versions, not the demo. The demo will NOT upgrade a registered copy.
Like
Abramurkwian
Abramurkwian
14 September 2014
Mcr, thank you for your answer, but I am talking about the registered 2.2.4 version. There is an embedded update checker/installer: iDerfag->Check for Updates->Upgrade Now (from 2.2.4 to 2.2.8) and it does not work - the upgrade process destroys the original app.
Like
Hippeman
Hippeman
15 September 2014
Same here. I'm on OSX 10.9.4 and I can't launch the app anymore after updating from the menu bar within iDefrag (legal, paid version).
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Alastairh
Alastairh
15 September 2014
Sorry about this; we’d have liked this update to go smoothly but there really wasn’t any way to avoid problems :-(

Please see

http://www.coriolis-systems.com/blog/2014/09/gatekeeper-and-os-x-1095/

for more.
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B-Jefferson-Le-Blanc
13 September 2014
I used to use TechTool Pro to defrag the volumes I use in my Mac tech support business. I have to be able to run maintenance routines from various versions of OS X and have to keep them all in good condition. When I previewed a partition recently with iDefrag I discovered that TTP left files in rather random order. Unlike TTP, which pays no attention to file priorities, iDefrag optimizes a volume by putting like files with like, and puts system and catalog files nearer the center of the drive so they can be accessed more quickly. Some may question whether this makes any real difference and I cannot prove that it does, but it appeals to my personal sense of order. So I now use iDefrag to tidy up all my drives and partitions. Coriolis has been around for a long time and they keep iDefrag up-to-date. These days when new Mac utilities are proliferating madly, I'm inclined to stick with more experienced developers with a\\ well established reputations.
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Version 2.2.8
2 answer(s)
Xenophile
Xenophile
14 September 2014
The "sort files by type" is a feature that preys upon those like yourself who assume "files in order" is better without any evidence.

Look at it this way, OS X is based upon open source BSD Unix, and if Unix required defragging, someone would have added it. But wait, defragging IS built in to BSD Unix! "Hot File Adaptive Clustering" moves commonly used files to a "Hot Zone" on the drive for faster access. OS X also uses on-the-fly defragmentation to defrag files smaller than 20 MB. HFS+ employs "delayed allocation" which combines small allocations to one large contiguous allocation for a given file.

As a result of all these optimizations OS X volumes do not suffer fragmentation significant enough to affect performance.

Soon this entire defrag debate will be moot, as fragmentation doesn't matter on SSDs and garbage collection is built into OS X. Hopefully users know that defragging an SSD potentially hurts performance and reduces SSD lifespan.



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B-Jefferson-Le-Blanc
B-Jefferson-Le-Blanc
15 September 2014
@ Xenophile: In my experience, the difference between those of us who think defragmenting a drive is useful and those who are sure that it is not, is that we concede there are probably circumstances where it is not necessary. Where those who oppose defragging are invariably adamant that it is not and are unwilling to allow for situations where it can be helpful. They dismiss those who disagree with them as fools or idiots. Their attitude alone tells you all you need to know about what they think they know.

The simple fact is that people use their computers differently and the results of these use patters are various. No rule applies to every situation, Xenophile's certitude to the contrary notwithstanding. In my work I often come across drives where files and free space are severely fragmented. How this affects a computer's performance depends on a great many variables. Clearly, though, OS X's technology to prevent fragmentation isn't preventing these conditions. If nothing else this kind of fragmentation causes a drive to be hammered excessively, creating unnecessary wear and tear on the hardware. Obviously this is less of an issue with SSDs.

But fragmentation is an issue, and efforts to dismiss it out of hand are the result of arrogance rather then actual real world knowledge and understanding.
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Hal-Itosis
13 September 2014
I cannot properly load the coriolis-systems.com webpage using Safari 7.0.6 (with Mavericks 10.9.4). Paused the blocking that Ghostery performs. Is it ClickToFlash perhaps? Anyway, it works with Chromium and Firefox. <shrug> -HI-
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Version 2.2.8
Bidule
24 July 2014
Not 30.95$ but 39.95$, seen on dev site.
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Version 2.2.6
Xenophile
28 June 2014
FYI: I asked the developer about using this with SSDs. He responded to say that version 3 is nearing release candidate status and will defragment SSD volumes, including Fusion drives. Since an SSD wears out after a certain number of write cycles, defragmentation is normally not recommended. iDefrag 3 will defrag SSDs by directly accessing the controller to manipulate the drive's garbage collection and wear leveling routines. The developer I spoke with couldn't say which drive controllers would be supported, but it's a fair guess that it will at least work with Toshiba and Samsung controllers since Apple uses them as OEM SSDs. What the developer did say is that their SSD defragging will yield bigger gains than HDD defragging. Even when run on a virgin OS X installation, gains of up to 1.3x were realized. That's right, Coriolis's SSD defrag heuristics are superior to Apple's own Mavericks installer! This will be HUGE for the Mac community. Until now we've been punk'd by OS X's poor TRIM support, but soon we'll have the first and only SSD defragmentation utility on the market! I can't wait to see how fast my Mac Pro is after iDefrag 3 works it's magic!
Like (3)
Version 2.2.6
1 answer(s)
Donmontalvo
Donmontalvo
15 September 2014
Why would SSD need "defrag"? It's bad enough folks are falling for the HD sugar pill. SSDs have a finite number of write cycles. I wish I had a stake in this company. Seems alot of folks are falling for the marketing hype. I've managed/supported 1,000's of multimedia Macs. The word "defrag" is generally tossed around during interviews to vet out prospective new hires. Hint: "Defrag is needed" = resume goes into the trash.
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bbw7
17 December 2013
The dev's site says the OS requirement is 10.6+.
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Version 2.2.6
WalterT8575
16 December 2013
Totally worth it! A new Mac for $31! OS X Mavericks made my 2011 MacBook Pro i7 literally three times slower across the board: starting apps, browsing photos, working in the UI... Although repairing permissions via Disk Utility helped by 5%, a super-easy overnight iDefrag run restored my system's old snappiness. Some of the low-level system files had hundreds of fragments. HATS OFF, CORIOLIS!
Like (2)
Version 2.2.6
RavenNevermore
08 December 2013
After updating to Mavericks, my iMac was running nice and fast. But now two months later, it was nothing but pinning beach balls, a unresponsive Finder which took minutes to draw in a window, and a bunch of other issues. So I decided to wipe my drive and do a clean install of Mavericks, and then restore everything else from my backup. That helped a lot, but still, it wasn't running like it should be. So I booted from a maintenance partition, and checked it out with iDefrag. Even though I had just installed everything, it was pretty fragmented. So I ran it over night and now it's as good as new, with Finder windows snapping open and their contents drawing in almost instantly. Applications launch much faster now too.
Like (5)
Version 2.2.6
5 answer(s)
bbw7
bbw7
17 December 2013
Isn't wiping one's drive disk and reinstalling an OS the ultimate defragging? That is my understanding anyway. If that's not the case, please enlighten me -- I say this earnestly. Are you intimating then that restoring your files from a back up caused the fragmentation problems?
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RavenNevermore
RavenNevermore
17 December 2013
You would think so, right? It was not in my case. It probably would have been if I also reinstalled all my software, etc. But since I restored from a backup using Carbon Copy Cloner, it seems to have moved everything over in the state it was. I think CCC does a block by block copy, and restores the same way. I'm not exactly sure. When I checked the drive in iDefrag, the newly restored drive was fragmented. Not as bad as it was (it was really bad to start with), but it still showed quit a bit. It only had to run about 8 hours, and the performance improvements where worth it.
Like (1)
bbw7
bbw7
20 December 2013
RN, Thanx for the reply. That was my hunch, that restoring ala CCC might reintroduce some of the fragmentation of the original file system.
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Mcr
Mcr
14 September 2014
A file to file restore after a disk reformat will not cause defragmentation, files are copied back sequentially and should be placed on the disk in order, like dominoes. A block to block restore will restore in the EXACT SAME LAYOUT as the original, hence 'block to block', so whatever fragmentation state of the original, the restoration will duplicate.

So, yes, typically a reformat and restore is the ultimate defragmentation, PROVIDED you do a file restore, not a block to block. And CCC provides you a choice to do file or block copy. (Note a block copy is ONLY allowed when the target disk/partition size t is equal or larger than the source disk/partition size.
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Wts
Wts
03 March 2015
I also use DiskWarrior 4 to "defrag" the directory which will also repair any damaged OS system files by replacing the directory..

This will also make your OS run snappier.
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