Proton Authenticator

Proton Authenticator

By Proton AG

  • Category: Productivity
  • Release Date: 2025-07-31
  • Current Version: 1.4.1
  • Adult Rating: 4+
  • File Size: 120.03 MB
  • Developer: Proton AG
  • Compatibility: Requires iOS 17.0 or later.
Score: 4.30917
4.30917
From 207 Ratings

Description

Get the authenticator trusted by millions — from Proton Mail, the world's largest encrypted email provider. Proton Authenticator is open source, end-to-end encrypted, and protected by strict Swiss privacy laws. Protect all your new accounts and strengthen security on your existing ones. Proton Authenticator keeps your 2FA codes secure, accessible, and completely private — with full control over where your data is stored. KEY FEATURES Local-First Storage:Your 2FA codes are stored entirely on your device, giving you complete control over your data. 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. Take control of your digital security today. Terms of service: https://proton.me/legal/terms Learn more: https://proton.me

Screenshots

Reviews

  • Can't backup codes to Proton Drive

    1
    By ...........--------------
    The latest release says you have the ability to backup your codes to Proton Drive. However the last release of proton drive removes it from the Files app. There is no way to set your codes to backup on Proton Drive.
  • error editing titles

    4
    By yenkrit
    sync between accounts enabled, adding a Google account via QR sometimes creates an entry that cannot be edited (“path not found”). Reinstalling the app fixes it immediately.
  • Removed iCloud sync

    3
    By Blue Zork
    This app was amazing, but they removed free iCloud syncing which automatically kept all my codes up to date across all my devices (including Windows with iCloud installed). Sorry, I don’t want to have to trust Proton with all my security codes by creating an account there. (And, yes, Proton Authenticator is open source, but there’s no way to verify the open source code was used to build this app.)
  • Bug with biometric lock

    1
    By nutella_98
    Select "Biometric lock" in the settings. Now when you open the app on a device which requires touch ID (iPad Air M3) you need to touch the sensor on the device in order to open the app. However, if your finger(s) you use for authentication is injured, or you select "Cancel" in the touch ID popup, you will not be able to use the app any more. The touch ID popup will keep coming up and it will never be dismissed. As a result, you can't even swipe the app to the background, which will render you entire device unusable unless you shut it down. Normally if touch ID fails the third time, the system presents entering your device code. But this option is not presented if touch ID fails, so you are cooked. This is stupid. In order to have biometrics enabled on your device, you have to have a code as well. So why lock people out of the app and their device if touch ID fails, and in those cases just present the code entry option.
  • Finally a clean authenticator app that doesn’t feel shady

    4
    By Arsenii Z
    I'd say this app deserves four stars overall. It handles the main stuff pretty solidly, and its cleaner than most security apps out there. You open it quick when you need a code, and everything looks straightforward without all the junk. No weird ads popping up or pushes to buy something extra, which is nice for a 2FA tool like this. The privacy side stands out too, especially since it’s free. That makes me more likely to suggest it to people. I think thats the part that gets it points over some others. But yeah, it doesnt quite hit five for me because it still comes off as kind of new. With these authenticator things, I worry more about trusting it long term rather than just the basic idea. Ive only used it a bit, so Im not ready to say its perfect yet. If youre already set up with something like Apple Passwords that works right into your phone, switching might not even cross your mind. Stability matters a ton here, since even tiny glitches could mess up access to accounts. Proton has patched some starting bugs, which shows they care, but it also reminds me the apps still growing up. I might be oversimplifying, but that maturing process feels real. I plan to stick with it myself, mainly because its simple and privacy oriented without any ad nonsense. It seems solid enough for now, though not totally flawless. Close to being really great, I guess.
  • Proton Finally Got It Right

    5
    By Dxtrznn
    I spent a long time looking for a company that could build a secure, easy-to-use authenticator app, and Proton absolutely nailed it. Okta looks polished and offers push notifications like Duo, but switching phones is more of a hassle than it should be. Google Authenticator does not give me the same easy access across all my devices that Proton does, which is a huge advantage for Proton. Apple Passwords is excellent when biometrics are involved and works well for OTPs, but when it comes to accessing and managing OTP codes, Proton Authenticator is simply easier and more convenient to use. It is simple, secure, and straightforward — exactly what I wanted.
  • Clean

    5
    By Axelrod360
    Cleanest Authenticator app I’ve used. It looks really nice and doesn’t overload you with random options. But why do Proton apps get updates so infrequently? That’s my huge issue with them.
  • App name cut off

    3
    By JustinVincent
    Would love if the app name wasn’t “ProtonAuthentic…” on the Home Screen
  • Feature Failures

    1
    By end-of-times
    Sweet 5 star design, BUT… Want to regenerate and replace your 2FA TOTP code? Sorry, you can add another but cannot remove, the old one. Want to rename the old one to market it deprecated? That doesn’t work either. How does Apple allow this product on their store? ABOUT does not even work.
  • Simple but effective

    5
    By Reno.exe
    It’s nothing fancy, but I am finally able to get rid of Authy for my Proton login. All my other authenticators are just stored in Proton Pass.

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