What's new in Proton Authenticator 1.3.3
Fixes:
- Bug fixes and improvements.
Other:
- Enforce encrypted backups for enhanced security.
- Updated core libraries.
- Translation updates.
About Proton Authenticator 1.3.3
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.
Proton Authenticator 1.3.3 trailer
Version:1.3.3
Uploaded:November 4, 2025 at 2:30PM UTC
File size:68.66 MB
Downloads:311
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Version:1.1.1
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Version:1.1.0
Uploaded:August 1, 2025 at 5:53PM UTC
File size:67.2 MB
Downloads:130


































