App Tamer

June 18, 2021

App Tamer 2.6.3 reduces its CPU usage and corrects several issues.

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 2.6.3

  • Corrected an issue that could cause App Tamer to use excessive CPU, while also adding optimizations to further reduce CPU usage.
  • Thread priorities have been set so that some tasks in App Tamer's helper application can be run on the low-power CPU cores on Apple Silicon-powered Macs.
  • Additional system processes have been marked "essential" and cannot be stopped with App Tamer. They are trustd, secinitd, lsd, keyboardservicesd, corestoraged and apfsd.
  • The maximum CPU limit for an app is now determined by the number of CPU cores in your Mac, not fixed at 800%.
  • Fixed a problem that could leave applications running at a slower speed after quitting App Tamer.
  • Corrected an issue that could prevent App Tamer from slowing down Amazon Photos.
  • Added a warning about slowing down coreaudiod.

More Information

App Tamer 2.6.3

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Try it for FREE for 15 days

Download Version 2.6.3 
For macOS 10.9 - 12 

Older Version 1.3.2 
For macOS 10.5 - 10.7 

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Single-user license: $14.95/each
2+ licenses: $12.45/each
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More Information
About App Tamer
What's New
User Manual
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
macOS 10.9 through 12

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