All me has selected Proton Authenticator as its primary 2FA authentication app.

Proton Authenticator is an open-source and end-to-end encrypted software-based authenticator. When logging into a website or application that supports multi-factor authentication, the user will be prompted for a six-digit one-time password which changes every thirty seconds. Proton Authenticator displays the current six-digit code, the next six-digit code, and the remaining number of seconds until the current code expires.

Proton Authenticator is available on iOS, Android, macOS, Windows, and Linux.

Proton Authenticator Key Features

• Encrypted iCloud Sync: Seamlessly sync your 2FA secrets across devices with end-to-end encryption.
• Effortless Import: Migrate from Google Authenticator, Authy, or any other app in seconds.
• Secure Backup & Export: Retain full control of your data with easy backup and restore options.
• Swiss Privacy by Design: Built under Switzerland’s strongest data protection regulations.
• Open Source & Transparent: Auditable code. No tracking. No ads.
• Take control of your digital security with encryption you can trust.
• Free to use: No Proton account required, ad-free.
• Offline support: On mobile and desktop apps
• No other 2FA app provides this combination of security and privacy.
• Trusted by millions. Built by Proton.