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Aegis Authenticator vs 2FAS: catalog facts
Aegis Authenticator	2FAS
Free Free and open source under the GPL, with no accounts and no paid tier.	Free Free and open source. Some components are source-available.
Android	Android, iOS, Browser extension
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	Browser extension approves codes on the phone instead of typing them Encrypted backups to your own iCloud or Google Drive account
Android only No cloud sync; you own the backup process	Mobile-first; there is no standalone desktop app Push approval needs the browser extension installed on each machine
Downloadable app	Downloadable app, Browser extension
Open source	Open source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 22, 2026

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