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MemoryFreer does just what it says - free up memory, especially the inactive memory that occupies the precious RAM on your machine. It greatly improves the performance of your memory-hungry applications such as Photoshop, Safari/Firefox, Office, iWork, etc.

Just click "Free Memory" button and watch the magic work! In some occasion you may need to run it a few times to shrink inactive memory to minimal.

What's New

Version 1.2.2:
  • Changed auto hide delay time back to 1 second due to popular request


Mac OS X 10.5 or later

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MemoryFreer User Discussion

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Tommy_Gun Member IconReview+52

Same crap as Memory Cleaner. Probably the same dev too trying to catch money at AppStore.

Reply0 replies
Version 1.2.2
Nontroppo Member IconReview+515

This is pure snakeoil. These junk memory optimisers were all the rage on Windows several years ago, and were categorically confirmed as snakeoil by Sysinternals guru Mark Russinovich. The same critique applies to this junk on OS X.

The author of iFreeMem once had benchmarks on his site purporting to show the benefits of this snakeoil, and when challenged, had to withdraw them as there is no objective benefit (and indeed forcing purging of inactive RAM is more harmful to VM management).

Reply1 reply
Version 1.2.2

Read the article here: http://www.windowsitpro.com/article/internals-and-architecture/the-memory-optimization-hoax

Schmye-Bubbula Member IconComment+16

Make an AppleScript applet containing only one line:

do shell script "purge"

Save it as an "Application Bundle" (for Intel Macs; otherwise, saved as an "Application" will want Rosetta, and not run at all under Lion), and just double-click it whenever you want to free up RAM.

Reply0 replies
Version 1.2.1
Mac007 Member IconComment+197

I was listening to a recent podcast by Leo Laporte "the Tech Guy" and he said due to the recent upgrades in computer OS's you don't need software like this since the OS immediately releases memory when called for by another program.

The following is a link to Leo's website if you don't believe me:


Reply2 replies
Version 1.0

The issue still exists on Lion as far as I'm concerned. Plus, Apple approved the app. :-)


The issue? And what issue is that? Perhaps that an advanced kernel uses inactive RAM to store information likely to be used again, and that is is almost no hit to flush thoe pages out if ever needed.

Flushing inactive RAM is snakeoil. That Apple approved the app means nothing, app (dis)/approval is pretty random.

Why don't you lay out solid evidence why flushing inactive RAM is better than letting the thousands of man hours of CS knowledge that built the VM system in the Darwin kernel do what it is supposed to?

Memory 'optimisation' is a hoax on Windows, and it is a hoax on OS X too: http://www.windowsitpro.com/article/internals-and-architecture/the-memory-optimization-hoax

Lvdoc Member IconComment+535

Does this program do what the following does, only for free?


Or does it do something else? Please clarify, since I'm supposed to buy without trying. Thanks.

Reply4 replies
Version 1.0

Well, you can say it basically does the same thing (in a different way). But, unless you're already a developer, do you really want to install a 5GB software to do the same thing? Not to mention open up a console and type a command every time. This app makes it a lot easier and also can monitor your memory usage in real time. A menubar quick menu is also there for your convenience.

After all, what we love about software is it makes your life easier, don't you agree?:-)


Where are you getting 5 GB? The program I identified is 45kb in size. And if it does basically the same thing, then it saves one a trip to anything. You just open it, and it does its thing. What am I misunderstanding?


Oh, I didn't realize he put a binary in there. Well, I'm not even sure that is legal because the program is part of XCode (which was not free but free now as a promotion to lion). It takes about 9GB disc space to install the whole package. I don't think one can redistribute the binary without Apple's permission.

In any case, I do think my app makes the whole process a lot easier and does more. I put up this app as a choice for people to choose from. Let them decide.:-)


Well, legality is a whole different ball game, and I appreciate that you clarified that.

user icon+1
Version 1.2.2
> 2 3


Current Version (1.x)


Downloads 10,151
Version Downloads 9,672
Type Utilities / System
License Commercial
Date 21 Sep 2011
Platform OS X / Intel 32
Price $0.99