Compare software

Google Authenticator2FAS
Free

Free to download and use.

 Free

Free and open source. Some components are source-available.

Android, iOS Android, iOS, Browser extension
  • Generates codes without a network connection
  • Optional sync of codes across devices via a Google Account
  • Browser extension approves codes on the phone instead of typing them
  • Encrypted backups to your own iCloud or Google Drive account
  • Cloud sync ties your codes to a Google Account
  • Not open source
  • Mobile-first; there is no standalone desktop app
  • Push approval needs the browser extension installed on each machine
Downloadable app Downloadable app, Browser extension
Closed source Open source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 23, 2026

Checked September 22, 2026

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