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Sonar is a security tool that provides real-time reporting of file changes on your hard drive. It is a useful diagnostic tool and an invaluable aid for anyone who is serious about computer security.

Sonar reports file system activity. It reports all changes. It does not report reading activity. Sonar cannot prevent disk activity. It only can report it. However, you can use the information reported by Sonar to delete files you don't want on your hard drive.


  • Monitor untrusted software with Sonar to ensure it is not installing spyware or other unauthorized files more...

What's New

Version 2.0:
  • Now compatible with Mac OS X 10.5 (Leopard). It is expected to remain compatible with the soon-to-be-released Snow Leopard, Apple's new OS scheduled to be released later this year.


Mac OS X 10.4 or later

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Sonar User Discussion

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Atalantia Member IconComment+44

Still after 1 year 64Bit Machines a 64bit Version is not out from this programm. Are they still working on it?

Reply0 replies
Version 2.0
Paladino Member IconComment+79

I gave "Sonar" a spin and have to say that the excellent and free "fSeventer" offers all the functionality and info that most anyone would want or need.
I'm staying with FSeventer.
I used Sonar's uninstaller to delete Sonar and then then used the outstanding and free "EasyFind" to look for any files/folders that Sonar's own uninstaller might have missed.
EasyFind found 14 of them.
I then typed in Matterform, and EasyFind came up with 8 more.
Interestingly, Matterform sells an uninstaller ("Yank"); its last iteration was way back in March '07 and which has gotten some less than stellar reviews from MacUpdate reviewers.
This does not inspire confidence.

Reply0 replies
Version 2.0
Anonymous Member IconReview

33 semolians (ouch!), when fseventer is free? How is this Sonar app better than fseventer?

Reply2 replies
Version 1.0
Matterform Media (Developer)

Thanks for asking! Here is a run down of what Sonar has over a free program:

More details in the logs.
Searchable logs.
Permanent logs.
Kernel integration separated from the UI for improved reliability.
Tech support, manual, etc.

And, we're having a sale this week :-)


Why does Sonar leave all those files even though the app was uninstalled with it's uninstaller and your company sells a removal app named "yank." As I said in the promo, I think these apps look okay but in reality they are updated for new operating systems and then support/updates are no where to be seen until next MAJOR OS upgrade. '07? But now yank, sonar, etc... have been updated and put on mu promo. I get the feeling it is all about the money and not quality or customer service. Fseventer does what this app can, if you need permanent logs you will have a pretty long database for this app. Hell, you sell an uninstaller that can't uninstall your own apps completely. As I said in the promo.... be wary. If you like it, buy it. Maybe you see something we don't. My observations have shown infrequent updates... all I am saying. My 2 cents.

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Current Version (2.x)


Downloads 4,456
Version Downloads 1,788
License Demo
Date 14 Jul 2009
Platform OS X / PPC 32 / Intel 32
Price $17.95
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