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SPECIFICTION
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2FAS Auth

2fas.com

Free plan iOSAndroidBrowser extension
Visit 2fas.com
Spec score 8.4 #24 of 111 in Authenticator apps

Spec sheet

Purpose
2FAS Auth generates two-factor authentication tokens to help users verify their identity when signing in to online accounts.Read 3 Oct 2026 · 2fas.com
Free plan
YesRead 21 Sep 2026 · 2fas.com
Privacy
The app is anonymous and does not require an account to use.Read 3 Oct 2026 · 2fas.com
Support
2FAS Auth offers a Help Center and a dedicated support channel on Discord.Read 3 Oct 2026 · 2fas.com
Maker
The maker is Two Factor Authentication Service, Inc., which lists an address in Henderson, Nevada.Read 3 Oct 2026 · 2fas.com
Browser support
The browser extension is offered for Chrome, Brave, Firefox, Edge, Opera, and Safari.Read 3 Oct 2026 · 2fas.com
Code type
totp and hotpRead 21 Sep 2026 · 2fas.com
Encrypted backup
YesRead 21 Sep 2026 · 2fas.com
Encryption
Communication between the mobile device and browser extension is end-to-end encrypted, with no fallback to unencrypted connections.Read 3 Oct 2026 · 2fas.com
Extension workflow
Users pair the extension with the mobile app by scanning a QR code, then confirm token requests in the app.Read 3 Oct 2026 · 2fas.com
History
The about page says Mark founded 2FAS in 2015 and 2FAS Auth launched in 2017.Read 3 Oct 2026 · 2fas.com
Languages
The app supports 16 languages.Read 3 Oct 2026 · 2fas.com
Mobile requirements
The download page lists iOS 18.6 or later and Android 9.0 or later for the authenticator mobile apps.Read 3 Oct 2026 · 2fas.com
Multi-device sync
YesRead 21 Sep 2026 · 2fas.com
Offline use
The app works offline.Read 3 Oct 2026 · 2fas.com
Push approvals
YesRead 21 Sep 2026 · 2fas.com
Source code
2FAS Auth is open-source, and its security features can be reviewed by independent security experts.Read 3 Oct 2026 · 2fas.com
Supported platforms
iOS,Android,Chrome,Brave,Firefox,Edge,Opera,SafariRead 21 Sep 2026 · 2fas.com
Token sync
Users can synchronize tokens with 2FAS export files, iCloud, or Google Drive.Read 3 Oct 2026 · 2fas.com
Tracking
2FAS says it does not use tracking codes.Read 3 Oct 2026 · 2fas.com

Plans and prices

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

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