Looking for a free two-factor authentication app that works across platforms? Proton Authenticator offers broad import capabilities, iCloud sync, and thoughtful security features from a company you ...

Proton Authenticator is positioned as a privacy-focused alternative to authentication apps from Google, Microsoft, Authy, and Duo. It replaces legacy SMS-based verification by generating unique ...

Proton adds a new two-factor authentication app to its suite of privacy-led tools alongside its email, password manager, VPN, and more. Proton Authenticator is free to use.