Proton Authenticator

Private, secure, offline 2FA across devices by Proton team

AppID:	proton.android.authenticator.fdroid
Author:	Proton
License:	GPL-3.0-or-later
Donation:
InRepoSince:	2025-11-26
LastRepoUpdate:	2026-02-07
LastAppUpdate:	Unknown
LastVersion:	1.3.6
Categories:	Password & 2FA, Security
APK source:
Google Play:	Check if it's there

Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline. Created by Proton, the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass.

Proton Authenticator is open-source, end-to-end encrypted, and backed by Swiss privacy laws. It’s the safest way to generate and store your one-time passwords (TOTP) for 2FA Login.

Why Proton Authenticator?

- Free to use: No Proton account required, ad-free.
- Offline support, on mobile and desktop apps
- Sync your 2FA codes to all your devices with end-to-end encryption.
- Enable automatic backups for peace of mind
- Easily import from other 2FA apps, or export from Proton Authenticator.
- Protect your account with biometrics or a PIN code.
- Open-source transparency, verifiable code.
- Protected by Switzerland’s privacy laws.

Trusted by millions. Built by Proton.

Take control of your digital security today.

WhatsNew:

## 1.3.6 (2026-01-19)

### Other

- Biometric unlock improvements.
- Updated core libraries.
- Translation updates.

Anti-Features:

NonFreeNet (this application promotes/depends a non-Free network service):
⇒ The backend is proprietary. In order to do progressive rollout of new features, the app connects to the proprietary backend to detect whether the experimental features are enabled or not.
Tracking (the application tracks and reports your activity to somewhere – usually either without your consent, or by default (i.e. you’d have to actively disable it)):
⇒ Users are fingerprinted even if not using the online features.

Download Metadata Website Source ChangeLog