WattMate
Which app is draining your Mac, in watts and minutes saved
WattMate launched on September 25, 2026 with 81 votes, #392 of 8,097 launches that month and more than 95% of that year's launches.
What it does
WattMate sits in the Mac menu bar and shows which app is draining the battery right now, in watts, and how many minutes you get back if you quit it. 2 minutes after you quit, it measures again and prints what really changed. Apple silicon, macOS 14+.
Which app is using your Mac
Get your battery back. Which app is draining your Mac right now, in watts, and how many minutes you get back if you quit it. A live reading, not a report on yesterday. 10 days free, no card. Notarized by Apple. Requires an Apple silicon Mac and macOS 14 or later. Battery health (capacity, cycles, temperature) is free, and stays free when the trial ends. 2 minutes after you quit an app, while you're on battery, WattMate measures the Mac again and prints what actually changed. Safari's Energy Impact. It has no unit, so it can never become minutes. You can rank apps with it, and that is all. Safari is drawing 7.0 W of the 31.0 W the Mac uses right now: a quarter of everything. Two things here…from wattmateapp.com
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