2FAS Auth

Android · iPhone · Extension

Freedom report

Two barsScore 7.6

2FAS Auth is ranked #12 of 113 in authenticator apps on Freedom251. It runs on Android, Browser extension, iOS. There is a free plan.

2FAS Auth plans and pricing

2FAS Auth Free Free to use; donations support the project. Open-source authenticator · works offline 2fas.com · 3 Oct 2026

Free plan: Yes
Code type: totp and hotp
Push approvals: Yes
Encrypted backup: Yes
Multi-device sync: Yes
Supported platforms: iOS, Android, Chrome, Brave, Firefox, Edge, Opera, Safari

Purpose: 2FAS Auth generates two-factor authentication tokens to help users verify their identity when signing in to online accounts.
Offline use: The app works offline.
Token sync: Users can synchronize tokens with 2FAS export files, iCloud, or Google Drive.
Privacy: The app is anonymous and does not require an account to use.
Tracking: 2FAS says it does not use tracking codes.
Source code: 2FAS Auth is open-source, and its security features can be reviewed by independent security experts.
Browser support: The browser extension is offered for Chrome, Brave, Firefox, Edge, Opera, and Safari.
Extension workflow: Users pair the extension with the mobile app by scanning a QR code, then confirm token requests in the app.
Encryption: Communication between the mobile device and browser extension is end-to-end encrypted, with no fallback to unencrypted connections.
Support: 2FAS Auth offers a Help Center and a dedicated support channel on Discord.
Languages: The app supports 16 languages.
Mobile requirements: The download page lists iOS 18.6 or later and Android 9.0 or later for the authenticator mobile apps.
Maker: The maker is Two Factor Authentication Service, Inc., which lists an address in Henderson, Nevada.
History: The about page says Mark founded 2FAS in 2015 and 2FAS Auth launched in 2017.
Price from: Free

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