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OTPClient vs FreeOTP: catalog facts
OTPClient	FreeOTP
Free Free and open source under the GPL-3.0 license.	Free Free and open source.
Linux, Command line	Android, iOS
Multiple encrypted token databases Supports TOTP, HOTP and Steam Guard codes	Open source with public repositories for both apps Available on F-Droid as well as Google Play and the App Store
Desktop Linux only, no mobile app Handles one-time codes only, not passwords	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
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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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