Proton Authenticator

Proton Authenticator
Proton Authenticator
Developer	Proton AG
Initial release	July 31, 2025; 2 months ago
Repository	Android repo; iOS repo
Written in	Kotlin (Android); Swift (iOS);
Operating system	Android, iOS, Windows, macOS, Linux
Platform	Mobile, Desktop
License	GNU General Public License v3
Website	proton.me/authenticator

Proton Authenticator is an open-source and end-to-end encrypted software-based authenticator.^[1] 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.^[2]^[3]

License

Proton Authenticator is licensed under GNU General Public License version 3, with the code hosted on GitHub.^[4]^[5]

References

^ Roth, Emma (2025-07-31). "Proton is adding yet another privacy-focused app to its arsenal". The Verge. Retrieved 2025-08-15.
^ Mehta, Ivan (2025-07-31). "Proton releases a new app for two-factor authentication". TechCrunch. Retrieved 2025-08-15.
^ "Introducing Proton Authenticator – secure 2FA, your way". Proton. Retrieved 2025-08-02.
^ "protonpass repositories". GitHub. Retrieved 2025-08-02.
^ "Say Goodbye to Microsoft Authenticator! Proton Just Introduced a Solid Alternative". It's FOSS News. 2025-07-31. Retrieved 2025-08-15.

External links

This software article is a stub. You can help Wikipedia by expanding it.

[1] Roth, Emma (2025-07-31). "Proton is adding yet another privacy-focused app to its arsenal". The Verge. Retrieved 2025-08-15.

[2] Mehta, Ivan (2025-07-31). "Proton releases a new app for two-factor authentication". TechCrunch. Retrieved 2025-08-15.

[3] "Introducing Proton Authenticator – secure 2FA, your way". Proton. Retrieved 2025-08-02.

[4] "protonpass repositories". GitHub. Retrieved 2025-08-02.

[5] "Say Goodbye to Microsoft Authenticator! Proton Just Introduced a Solid Alternative". It's FOSS News. 2025-07-31. Retrieved 2025-08-15.

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