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

Haven't been able to use the app because I am on Microsoft Authenticator and you can't import from there (Microsoft thing). But, I don't use biometrics, so I can't lock this app. That's a bit of a joke for a company focused on security. You already have that implemented on the password manager. I also agree with making the app icon more similar thematically to the other proton apps. So strange. Definitely does not seem like it was ready for release yet. Change where it says "Biometric unlock" to "Biometric unlock only".

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!

I've been seeing an issue from the very beginning of this app. Every code card bubble has a background that moves when you swipe left or right. For whatever reason this bubble background layer is generating slowly so I can see the yellow(left side) and red(right side) underlayer and the schooling feels junky. This always happens for me. I have tried to see if scrolling through the middle of the app causes this issue and yeah it's still occurring.

What’s new

- Target Android 16