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Stratum Auth vs FreeOTP: catalog facts
Stratum Auth	FreeOTP
Free Free and open source under GPL-3.0.	Free Free and open source.
Android	Android, iOS
Generates HOTP and TOTP codes Supports Android and Wear OS	Open source with public repositories for both apps Available on F-Droid as well as Google Play and the App Store
Android and Wear OS only	Mobile only, no desktop app Minimal project website with little documentation
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	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 October 8, 2026	Official website Full listing and sources Checked September 23, 2026

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