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2FAS Auth

Plans and prices

2FAS Auth

Free

Open-source authenticator · works offline

Every plan, in full

On the record

Browser support
The browser extension is offered for Chrome, Brave, Firefox, Edge, Opera, and Safari.2fas.com · read 3 Oct 2026
Code type
totp and hotp2fas.com · read 21 Sep 2026
Encrypted backup
Yes2fas.com · read 21 Sep 2026
Encryption
Communication between the mobile device and browser extension is end-to-end encrypted, with no fallback to unencrypted connections.2fas.com · read 3 Oct 2026
Extension workflow
Users pair the extension with the mobile app by scanning a QR code, then confirm token requests in the app.2fas.com · read 3 Oct 2026
History
The about page says Mark founded 2FAS in 2015 and 2FAS Auth launched in 2017.2fas.com · read 3 Oct 2026
Languages
The app supports 16 languages.2fas.com · read 3 Oct 2026
Maker
The maker is Two Factor Authentication Service, Inc., which lists an address in Henderson, Nevada.2fas.com · read 3 Oct 2026
Mobile requirements
The download page lists iOS 18.6 or later and Android 9.0 or later for the authenticator mobile apps.2fas.com · read 3 Oct 2026
Multi-device sync
Yes2fas.com · read 21 Sep 2026
Offline use
The app works offline.2fas.com · read 3 Oct 2026
Privacy
The app is anonymous and does not require an account to use.2fas.com · read 3 Oct 2026
Purpose
2FAS Auth generates two-factor authentication tokens to help users verify their identity when signing in to online accounts.2fas.com · read 3 Oct 2026
Push approvals
Yes2fas.com · read 21 Sep 2026
Source code
2FAS Auth is open-source, and its security features can be reviewed by independent security experts.2fas.com · read 3 Oct 2026
Support
2FAS Auth offers a Help Center and a dedicated support channel on Discord.2fas.com · read 3 Oct 2026
Supported platforms
iOS,Android,Chrome,Brave,Firefox,Edge,Opera,Safari2fas.com · read 21 Sep 2026
Token sync
Users can synchronize tokens with 2FAS export files, iCloud, or Google Drive.2fas.com · read 3 Oct 2026

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