Dev tools · alternatives · 2026
24 alternatives to Powir
An open source & free Windows power & battery manager
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites. Powir launched in 2020; newer entries below may have overtaken it.
- 1
The battery app your Mac has been dreaming about
2023 · its alternatives →
- 2IMI made a tiny camera with super long battery lifefrom $200/mo▲843
Hey HN! A few years ago someone kept trying to steal my motorcycle, so I decided to make a small camera with really long battery life to catch them. The hardware/software is totally open source, but the companion app only supports macOS currently. (I'm a big fan of native apps, and didn't want to block releasing on Linux/Windows support.) I wrote some blog posts about the process: PCB design: https://toaster.llc/blog/pcb Enclosure design: https://toaster.llc/blog/enclosure Image pipeline:…
2024 · toaster.llc · its alternatives →
- 3
Usage▲461For everyone curious about how their devices are performing, I made an app that lets you monitor many aspects of a Mac. It is a lightweight, customizable, and very convenient app for everyday use. Also available for iPhone and iPad. Check it out, and I would love to hear your feedback!
2025 · usage.pro · its alternatives →
- 4
Battreminder▲80Get notified when your laptop battery is fully charged! 🔋
2018 · chromewebstore.google.com · its alternatives →
- 5
Battery Health 3▲171In-depth battery usage analysis for your Mac, iPhone & iPad
2017 · fiplab.com · its alternatives →
- 6
Freeter▲143Open-source workspace. For people working on their computer.
2016 · freeter.io · its alternatives →
- 7
- 8
Free, open-source battery health tool for Windows & Android
Jun 2026 · batterychecker.org · its alternatives →
- 9
mTarsier▲188Open-source platform for managing MCP servers and clients
Mar 2026 · mtarsier.com · its alternatives →
- 10
- 11
MenuBar Stats▲173Advanced Mac system monitor right from the menu bar
2017 · seense.com · its alternatives →
- 12
Coppers is a custom test harnass for Rust that measures the energy usage of your test suite. - ThijsRay/coppers
2022 · github.com · its alternatives →
- 13
- 14
Batteries for Mac | Track all your devices
2021 · fadel.io · its alternatives →
- 15
Existential app that notifies when its life force runs low
2019 · github.com · its alternatives →
- 16
MeterStats▲82The ultimate app for keeping track of your energy usage
2023 · pxlwaves.com · its alternatives →
- 17
macOS battery optimizer: 3 power profiles & monitoring
Jun 2026 · github.com · its alternatives →
- 18
Visualize your disk usage and clean it up at the same time.
2021 · windirstat.net · its alternatives →
- 19
Because your laptop deserves the royal treatment 👑
Jul 2026 · biryani-battery-reminder.vercel.app · its alternatives →
- 20
GitHub▲11Open-source battery health watchdog for your power systems
2025 · github.com · its alternatives →
- 21
Interactive battery monitoring for iOS
2021 · apps.apple.com · its alternatives →
- 22
Freeter - The smartest way to work on your computer.
2017 · freeter.io · its alternatives →
- 23
An incredible assistant for laptop battery
2021 · github.com · its alternatives →
- 24
Display live system stats on Windows's taskbar
2021 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →