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WattMate
Which app is draining your Mac, in watts and minutes saved
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+.
I'm the guy who forgets to charge overnight, walks into a coffee shop with a half-empty Mac and then sits there not knowing what is draining it or whether closing anything would help. Activity Monitor has an Energy Impact column, but it's a score with no unit: you can rank apps with it, you can't turn it into time.
So I wrote an app whose main screen has one rule: only what's changing right now and what you can act on. That became 2 numbers per app, the watts it's drawing and the minutes you get back if you quit it. And because any tool can print a number, 2 minutes after you quit it measures the Mac again and prints what actually changed. The screenshot says "promised 24 min, got 28", and when the load moved for other reasons it says that instead.
I also assumed sleep was free. Most nights my Mac loses about 5% with the lid closed, then one night it loses 38%, and nothing on the Mac says why. So WattMate logs who woke it and for how long: about an hour awake on the bad night, 12 minutes on a normal one.
Pricing:
- Fully unlocked 10-day trial, no card
- Still free after the trial: the app list, the watts, battery health, and the most recent run and night
- The minutes and the archive are the paid part
- Lifetime: $19 instead of $29, the launch price for the first 100 keys, applied at checkout without a code
- Yearly: $9.99
- One key works on 2 Macs
Apple silicon, macOS 14 or later. The names of your apps, your watt figures and your energy history never leave the Mac. Ask me anything about how the measuring works, that's the part I like talking about.
About WattMate on Product Hunt
“Which app is draining your Mac, in watts and minutes saved”
WattMate was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #107 on the daily leaderboard. 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+.
On the analytics side, WattMate competes within Mac, Productivity and Menu Bar Apps — topics that collectively have 777.9k followers on Product Hunt. The dashboard above tracks how WattMate performed against the three products that launched closest to it on the same day.
Who hunted WattMate?
WattMate was hunted by Vitali. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of WattMate including community comment highlights and product details, visit the product overview.
Vitali