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FreeOTP vs Authy: catalog facts
FreeOTP	Authy
Free Free and open source.	Free Free to use for consumers.
Android, iOS	Android, iOS
Open source with public repositories for both apps Available on F-Droid as well as Google Play and the App Store	Encrypted backup and multi-device sync, which many authenticators lack
Mobile only, no desktop app Minimal project website with little documentation	Desktop applications were retired; only mobile is supported Account recovery is tied to a phone number, which is a known attack surface
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is 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 22, 2026

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