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App Tamer

October 8, 2015

Version 2.1 adds compatibility with El Capitan and improved support for a number of applications.

This version is a free update for App Tamer 2 users. Please note that if you still have App Tamer 1.x, this is a $7.95 paid upgrade if you purchased version 1.x before July 1, 2013.

What's new in version 2.1

  • Compatible with El Capitan.
  • Refined the logic that detects when App Tamer is having trouble monitoring Chrome's download activity.
  • The AppleScript command for turning autostop on and off now returns the old setting as its result.
  • Updated support for NetNewsWire, the App Store app, Go for Facebook, Leaf, Reeder and Fluid browsers.
  • Improved "Show in Finder" so that it works with system daemons and other non-application processes.

Why upgrade to App Tamer 2 if you're still using version 1.x?


As an alternative to completely stopping an application when it's in the background, you can now put a limit on the amount of CPU an app can use.

You can limit Mail, for example, to use no more than 10% cpu. It will still download your new messages, but won't tax your computer while you're doing something else.

This lets you manage many more applications than you could with App Tamer 1.x, because it works with virtually any app, even those that need to run in the background.

New User Interface

You can now get everything straight from the menubar. Click on App Tamer's icon to see CPU usage, what App Tamer is doing and to change settings for your applications.

  • Hover over an app to see it on the graph. Click on it to change its settings.
  • The colored squares show you what App Tamer is doing.
  • Use the utility menu (the gear icon in the lower right corner) to change preferences, get help, buy App Tamer or quit it.

Improvements Throughout

The engine that manages your applications has been streamlined, enhanced and refined since version 1.x to make saving CPU and battery even faster and easier.

What about App Nap?

Mavericks and Yosemite provide some power-saving features on their own, but App Tamer goes well beyond these.

Upgrading from Version 1.x

If you purchased App Tamer 1.x on or after July 1, 2013, the upgrade to version 2.0 is FREE. App Tamer knows when you bought your license, so you just need to download and run version 2. Your existing serial number will continue to work.

If you bought App Tamer before July 1, 2013, the upgrade to version 2.0 is $7.95. You can purchase your upgrade from our online store.

There's a free 15 day demo period so you can download it and try it for yourself!

App Tamer 2.1
(a server will be selected for you automatically)

If you have trouble contacting our servers, please let us know at


Try it for FREE for 15 days

Download Version 2.1 
For Mac OS 10.7+ 

Download Version 1.3.2 
For 10.5 and 10.6  

Buy App Tamer Now
Single-user license: $14.95/each
2+ licenses: $12.45/each
More Information
About App Tamer
What's New
User Manual
Beta Testing
Reviews and Comments
What a beautifully simple yet revolutionary App! But don't tell Apple that I can put off upgrading my Macbooks for another year ;)
- Marko Turner
It's "just working". Thank you so much. Love the product. Love the support.
- Gregory Morse
A) the user interface is completely intuitive, B) it seems to work perfectly and instantaneously, and C) I did independent confirmation with my usual tool (top from the command line) and astonishingly, Safari was sitting there firmly fixed at 0 %CPU. That is awesome!!! I am absolutely going to be telling everyone I know to go buy this immediately!
- Larry Yaeger
System Requirements

Mac OS 10.7
or higher

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