Proton Authenticator
Proton Authenticator is a two-factor authentication app for Mac that generates login codes and can sync or back up your 2FA accounts across devices.
What is Proton Authenticator?
Proton Authenticator is a two-factor authentication app that helps you protect online accounts with time-based one-time login codes on your Mac and other devices. It is designed for people who want a standalone authenticator separate from their password manager, including users who prefer desktop access as well as mobile use. The app lets you add accounts by scanning QR codes or entering setup keys, then generates rotating 6-digit codes for sign-ins. It also supports importing existing tokens from other authenticator apps, exporting codes, and using the app without creating an account. If you sign in with a Proton account, you can securely sync your 2FA codes across devices and use encrypted backups. Proton Authenticator is available on macOS, Windows, Linux, iPhone, iPad, and Android.
Key features
- Generate time-based 2FA codes for account sign-ins
- Add accounts by scanning QR codes or entering setup keys
- Import tokens from other authenticator apps
- Export your saved 2FA codes when you need to move them
- Sync codes across devices with end-to-end encryption
- Use the app offline without needing an internet connection
- Access your vault with biometric unlock on supported devices
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
This app’s purpose is security-focused, and requesting access needed to scan QR codes or protect local data is consistent with an authenticator app. Your saved 2FA secrets are highly sensitive because anyone with access to them can generate login codes for your accounts. If you enable syncing or backups, protect your Proton account with a strong password and keep recovery methods in a safe place. Only install updates from Proton’s official distribution channels, and verify that the macOS app you open is Proton Authenticator with bundle ID me.proton.authenticator.
Recommendation: Keep Proton Authenticator if you use it to sign in to websites, services, or your Proton account, because removing it without exporting codes or saving backup methods can lock you out of other accounts. If you are switching to another authenticator, export or transfer your 2FA entries first and confirm each account has alternate recovery options before uninstalling.
Common paths
/Applications/Proton Authenticator.app
Share your experience
Be the first to share your experience.