Proton Authenticator

Proton AG

About this app

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.

Ratings and reviews

I like this app. It's quite simple and also has cloud sync. Nice. But I found two annoyances: Can't copy next codes, and the editing mode is not obvious. I thought editing was not possible until I found it completely by accident. The app should give the user at least some clue that editing is possible by swiping left to right. Other than that, it does the job quite well.

I kinda like this app. Super simple UI and cloud sync, great! However, I found two things to be a little bit frustrating: I can't copy next codes, and the editing mode isn't intuitive. I initially thought editing wasn’t an option until I stumbled upon it accidentally. The app should offer users at least a hint that editing can be accessed by swiping left to right. I'd hope for more icons support or custom icon pack support, if possible. Thanks for reading.

I used various apps before this one. Google Authenticator, Bitwarden, Stratum Authenticator, Synology Secure SignIn... None of these had the feature I didn't even know I wanted: showing the upcoming OTP! This is amazing! The number of times I had to wait because the code was about to change in 10 seconds and I estimated I would not be able to enter the code before it changed... those days are over! Seeing the next code that is about to come is the best feature I didn't even realize I wanted!

What’s new

- Target Android 16