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.
What is new in this release:
- App Tamer can now be set to quit applications after they've been idle in the background for a certain amount of time. Note that if the application pops up alerts about unsaved changes, etc, those alerts will still pop up. App Tamer doesn't auto-OK them or otherwise intervene.
- There were situations in which App Tamer's management of CPU usage could fail for apps that have multiple sub-processes, like web browsers and Spotlight. This issue has been fixed, so managed apps should stick more closely to the CPU usage you've set for them.
- When you turn on Time Machine Acceleration, App Tamer checks to see if Time Machine is also configured to be slowed to a particular CPU limit and will put up an alert to let you know that these settings are at cross purposes.
- App Tamer's own CPU usage has been reduced.
What is new in version 2.3.3:
- Added the ability to change a process' priority. While this generally doesn't make much of a performance difference, it can help when multiple processes are competing for disk or network access. Hold down the Option key while clicking on a process in the process list to access the priority slider.
What is new in version 2.3.2:
- App Tamer's window is now resizable.
- Fixed a bug that could result in App Tamer not correctly slowing a process even when it showed that it was managing it.
- Worked around a macOS issue that could result in App Tamer warning about an application's CPU usage even after being told not to.
- App Tamer's default settings have been changed: Preview and OmniOutliner will no longer be managed by default, Safari will be slowed to 2% CPU usage rather than being stopped in the background, and iTunes will be slowed to 10% rather than stopped.
What is new in version 2.3.1:
- If Spotify is playing music in the background, App Tamer will no longer stop or slow it down.
- Corrected a logic error that prevented App Tamer from correctly slowing apps that have lots of helper processes (such as Spotlight and Google Chrome).
- When Chrome and Spotlight are slowed by App Tamer, their CPU usage is now more steady.
- Fixed several small memory leaks.
What is new in version 2.3:
- New "Detection" feature that alerts you when an application or background process starts consuming excessive CPU time.
- Updated user interface that's consistent with the look of El Capitan and Sierra.
- App Tamer will no longer stop iTunes when iTunes is ripping a CD.
- When it launches, App Tamer now automatically quits any other copies that are running.
- All Spotlight indexing processes (and their aggregate CPU usage) are now displayed as a single task.
- Fixed a bug where App Tamer considered the frontmost app "in the background" when you clicked on App Tamer's icon in the menubar.
- Eliminated a crash that could occur when macOS supplies incomplete process information to App Tamer.
- App Tamer will never stop VoiceOver.
- Fixed VoiceOver support in the Quick Start windows.
- App Tamer now requires macOS 10.8 or higher.
What is new in version 2.2b3:
- Further improved efficiency on El Capitan and Sierra.
- Fixed a launch-time bug that caused crashes on macOS 10.9.
- Made contextual menus (when clicking on processes in App Tamer) behave consistently.
What is 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.
What is new in version 2.0.5:
- If your Mac has more than four processor cores, you'll now get a dialog offering to change the cpu history graph to a logarithmic scale. This mode shows much more detail when cpu usage is a lower percentage of total capacity (which is very common because you're rarely using all cpu cores on 8 and 16 core Macs).
- Fixed problems with 64-bit Safari plugins not being stopped and started correctly.
- App Tamer now shows more helpful error messages when it can't connect to the internet to validate your license number.
- When installing its helper application, App Tamer will try to fix permission errors for you when it encounters them.
- When App Tamer reenables itself after being turned off for a period of time, it now displays a notification in Notification Center on Mac OS 10.8+ .
- Corrected a bug that would mistakenly hide both stopped and slowed apps when the "Hide applications when they are stopped" setting was turned on in your preferences. Now App Tamer doesn't hide apps that have just been slowed down.
- Improved the appearance of the CPU history graph.
What is new in version 2.0.4:
App Tamer has been updated to fully support Mac OS 10.10 Yosemite.