Proton Authenticator v1.3.1

Proton AG

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About this app

Secure, end-to-end encrypted, open source, and available on every device

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.

Version Information

Version: 1.3.1
Downloads: 100K+
Updated on: Nov 4, 2025
Released: Jul 28, 2025
Requires: Android 8.1

What's New

Features
- Support FIDO2.
- New sorting options
- Support enabling/disabling anonymous data sharing in settings screen
Fixes
- Fix RTL support.
- More bug fixes.
Other
- Importer and Uri parsing improvements.
- Translation updates.