App Tamer 2.2 makes Macs cooler, quieter and more power efficient Posted 9/07/2016 at 18:40 UTC in Mac by gnye@amdesign.net | Permalink | Tweet St. Clair Software delivers an update today for App Tamer, its Macintosh utility that manages applications to deliver more efficient CPU usage, increased battery life and quieter operation. App Tamer's unique AutoStop capability automatically slows down or pauses applications when you switch away from them, and then restarts them when you click back to them. This version delivers compatibility with Sierra and improves App Tamer's performance.