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FreeOTP vs Aegis Authenticator: catalog facts
FreeOTP	Aegis Authenticator
Free Free and open source.	Free Free and open source under the GPL, with no accounts and no paid tier.
Android, iOS	Android
Open source with public repositories for both apps Available on F-Droid as well as Google Play and the App Store	The vault is encrypted with AES-256-GCM, unlocked by password with scrypt or by biometrics Automatic backups of the vault to a location you choose, plain or encrypted
Mobile only, no desktop app Minimal project website with little documentation	Android only No cloud sync; you own the backup process
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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