By following these steps, you can effectively use Google Authenticator on your Windows PC, enhancing your online security with two-factor authentication.

Proton Authenticator is a new all-in-one 2FA app that wants to take the place of Google Authenticator, Authy, and Duo on your devices.

Aug 19, 2025 20:00:00 Review of 'Proton Authenticator,' a free two-factor authentication app that can be synchronized between smartphones and PCs, compatible with Android, iOS, Windows, macOS, and ...

Like all Proton apps, Authenticator is open-source and has been independently audited and verified by third-party experts. It is available for free on Android, iOS, macOS, Windows, and Linux.