Proton Authenticator
Private, secure, offline 2FA across devices by Proton team
Proton Password & 2FA Security
Screenshots
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.
What’s new (1.3.9)
## 1.3.9 (2026-06-30)
### Other
- Updated core libraries.
- Translation updates.
Anti-features
Properties of this app that are worth knowing about before installing.
- NonFreeNet
- Tracking
Versions
Permissions
What the app asks the system for. Android only grants sensitive access after you confirm it.
- CameraTake photos and videos.
- Internet accessSend and receive data over the internet.
- NotificationsShow notifications.
- Network stateCheck whether and how the device is connected.
- BiometricsUnlock with fingerprint or face.
- FingerprintUnlock with a fingerprint.
- Prevent sleepingKeep the device from going to sleep.
- Run at startupStart automatically after the device is switched on.
Show 2 more permissions
- Foreground serviceKeep running in the background, visible in the status bar.
- fdroid.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
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