A health app for your wearables. No subscription, no fees, private by default.

As featured in Hackaday and Adafruit.

Today	Health	Sleep	Heart rate	Workout

Devices

Supported: WHOOP 4.0, 5.0, MG.

Being built: Oura Ring, Garmin, Pebble, Colmi, Ultrahuman, Mi Band and more.

Full feature list: docs/FEATURES.md.

Support

OpenStrap has no company, no subscription and no paywall behind it. If it's useful to you, a tip helps keep it going.

Bitcoin

bc1qvtcch38dcwp967ar764uu6eetw7tf907844wfq

EVM (Ethereum, Base, Arbitrum, Optimism, Polygon)

0x8310C89393366b7eBCD47ABa82e1dfB5ECeFFbD9

Community

Discord · Reddit

Guides

• Development: build and run from source
• Features
• iOS installation
• iOS sideload
• iOS Shortcuts
• Apple Watch setup
• AI coach
• Tasker integration
• Buzz meanings
• Writing a device adapter

Contributing

Bug reports from real devices are the most useful thing you can send. PRs are welcome; read CONTRIBUTING.md first, which covers which repo a change belongs in. Security issues go through SECURITY.md.

Privacy

Everything stays on your phone unless you opt in. Details in PRIVACY.md.

Disclaimer

OpenStrap is independent and not affiliated with or endorsed by WHOOP, Oura, Garmin or any device maker. Product names are trademarks of their owners and are used only to describe compatibility.

License

AGPL-3.0. See LICENSE. The OpenStrap name and logo: TRADEMARKS.md.