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Flauth vs Aegis Authenticator: catalog facts
Flauth	Aegis Authenticator
Free Free and open source under the MIT licence.	Free Free and open source under the GPL, with no accounts and no paid tier.
Windows, macOS, Linux, Android, Command line	Android
Same authenticator on Android and all three desktop systems Command-line tool for reading codes in a terminal	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
Small, young project with a single main developer No iOS app listed among the downloads	Android only No cloud sync; you own the backup process
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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