Compare software

Google AuthenticatorAegis Authenticator
Free

Free to download and use.

 Free

Free and open source under the GPL, with no accounts and no paid tier.

Android, iOS Android
  • Generates codes without a network connection
  • Optional sync of codes across devices via a Google Account
  • 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
  • Cloud sync ties your codes to a Google Account
  • Not open source
  • Android only
  • No cloud sync; you own the backup process
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-3.0
Not stated if an account is needed No account needed
Works offline Works offline

Checked September 23, 2026

Checked September 21, 2026

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