Proton Authenticator & 2FA

Proton Authenticator & 2FA is a productivity app by Proton AG with 500,000+ downloads (about 600K estimated). +14K installs in the last 7 days. Rated 4.9 from 18K ratings. Released Jul 28, 2025. Install growth, rank history, SDKs and ad networks.

From the store listing: “Proton Authenticator is a free, private 2FA authenticator app that generates secure one-time passwords (OTP) on all your devices, even offline. Add multi-factor authentication (MFA) to your online accounts in seconds. From the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass. Open-source, end-to-end…”