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Proton Authenticator 1.3.3

By Proton AG • January 24, 2026
Productivity Universal Native (Java/Kotlin) 51.18 MB
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File Information

Package Nameproton.android.authenticator
Version Name1.3.3
Version Code10303288
ArchitectureUniversal
Min Android VersionAndroid 27 (API 35)
Main Activityproton.android.authenticator.app.ui.MainActivity
FrameworkNative (Java/Kotlin)
File Size51.18 MB
Signature (SHA1)D8E1EE3FF3A7F6EC46883C898032FE03C23EEC20
File Hash (SHA256)929e64470dc31081df90b501526ce5493d0032531f7a672db17de0729e68e8c4

What's New

Fixes:
- Bug fixes and improvements.
Other:
- Enforce encrypted backups for enhanced security.
- Updated core libraries.
- Translation updates.

App Description

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.
Download Proton Authenticator APK

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APK Permissions 10

  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.CAMERA
  • android.permission.FOREGROUND_SERVICE
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_FINGERPRINT
  • android.permission.WAKE_LOCK
  • proton.android.authenticator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION