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Gadgetbridge vs Withings App: catalog facts
Gadgetbridge	Withings App
Free Free and open source, funded by donations.	Free The app is free and can be used without buying a Withings device.
Android	Android, iOS, Web
Replaces proprietary companion apps for many wearables Supports a very wide range of device types	Usable as a standalone tracker without Withings hardware Measures heart rate with the phone camera
Android only Some devices need extra pairing steps or vendor keys	Weight and blood pressure need manual entry unless you own Withings devices Proprietary app tied to the Withings ecosystem
Downloadable app	Downloadable app, Hosted service
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.