App Tamer logo

App Tamer for Mac

By St. Clair Software Free to try

Key Details of App Tamer

  • Pause apps automatically to get more efficient CPU usage and increase battery life
  • Last updated on 07/17/20
  • There have been 2 updates within the past 6 months
  • The current version has 0 flags on VirusTotal badge_icon

Developer's Description

App Tamer automatically pauses applications to deliver more efficient CPU usage and increased battery life. Some Mac applications, especially web browsers, continue running tasks or animations even when they're supposed to be idle in the background. This can consume valuable processing power and reduce battery life. App Tamer's unique AutoStop capability automatically pauses these applications when you switch away from them, and then restarts them when you click back to them. This frees your CPU and reduces power consumption. App Tamer includes an attractive and clear user interface for managing your running applications. It shows the average percentage of your processor(s) being used by each app, and graphically displays a history of CPU usage. You can easily enable AutoStop for any application, as well as change its processing priority in OS X. App Tamer comes pre-configured to automatically pause Safari, Firefox and Chrome when they're in the background. AutoStopping other applications is just a mouse click away.

Full Specifications

What's new in version 2.5.2

  • Compatible with the beta release of macOS 11.0 Big Sur.
  • High-CPU-usage warnings will not be displayed when Do Not Disturb is turned on in Notification Center.
  • When you click on a system process, the settings popup will show a small "Info" icon if the system provides a description of what that process does. Click on the Info icon to get more insight into what processes like iconservicesagent, WindowServer, launchservicesd, etc do on your system.
  • App Tamer will no longer allow you to stop BetterTouchTool, and displays a warning if you try to it slow down because that's a bad idea.
  • App Tamer's process list now just toggles between showing "highest CPU processes" and "all running processes", rather than providing three different views. The button that switches between these modes is now titled "Include / exclude essential system processes" to make the contents of the lists clearer.
  • Fixed a bug that could cause the main window to display incorrectly when set to Dark Mode in App Tamer's preferences.


Release July 17, 2020
Date Added July 17, 2020
Version 2.5.2

Operating Systems

Operating Systems Macintosh
Additional Requirements
  • macOS Catalina
  • macOS Mojave
  • macOS High Sierra
  • macOS Sierra
  • OS X El Capitan
  • OS X Yosemite
  • OS X Mavericks
  • OS X Mountain Lion


Total Downloads 4,328
Downloads Last Week 0
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