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

Excellent replacement for Google's Authenticator, especially since you can create a free account and run the Windows version on your PC and have all the codes synced. That's a massive win for somebody who leaves their phone in the other room all the time, and just wants to log into their bank or whatever website that needs an authentication code. All I have to do is open up the PC version and there it is, instead of getting up and finding my phone. Excellent and perfectly serves my needs!

Love the app. The only reason for four stars instead of five is because I wish there was a way to edit the name of each entry. Occasionally, I'll add one that gets added with a name that is different than the website it is for - so I have to remember, xxxx MFA pairing is for yyyy website. Allowing us to edit the name so that they match would be EXTREMELY helpful. EDIT: after the feedback from Proton to my original review and confirming I can edit entries, I've updated my review to five stars.

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.

What’s new

Fixes:
- Fix QR code scanning.
- Fix snackbar message shown multiple times.
- Item creation fixes.

Other:
- Improve global performance if there are a lot of TOTP items.
- Translation updates.