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

Not a horrible app. I would like for you guys to add different ways to lock this though. I don't want to use biometric lock for this and that's the only option you have. I would like to add my own numerical password. You guys have made it to where you can hide the numbers as well, which I like, but I would like for the numbers to appear after I click on the box. Currently it stays hidden and only copies to clipboard. I would also like to see orginization tools, currently there are none.

Following the dev advice, I was able to get the app to work, but syncing still causes duplication of codes. Reached out via email. App no longer opens after I tried to sync two devices. First, it duplicated all secrets, then after I tried to clear them, they kept coming back. Tried uninstalling and reinstalling; now the app won't load. I've rebooted and reinstalled multiple times. No success. Works great on my computer, just not my phone.

After about a week the app would no longer open. Found out an update was available so I did that. Now updated, it opens again, only to require biometrics to continue. Unfortunately, it will not proceed to a point where I could scan a fingerprint. Now it is totally useless, and I am locked out of accounts requiring that authentication.

What’s new

Features:
- Generate password-protected backups.
- Import password-protected backups.
- Import from Google Authenticator via QR code.


Fixes:
- More importer improvements.

Other:
- Translation updates.