Why can't I install Proton Authenticator?

The installation of Proton Authenticator may fail because of the lack of device storage, poor network connection, or the compatibility of your Android device. Therefore, please check the minimum requirements first to make sure Proton Authenticator is compatible with your phone.

How to check if Proton Authenticator is safe to download?

Proton Authenticator is safe to download on APKPure, as it has a trusted and verified digital signature from its developer.

How to download Proton Authenticator old versions?

APKPure provides the latest version and all the older versions of Proton Authenticator. You can download any version you want from here: All Versions of Proton Authenticator

What's the file size of Proton Authenticator?

Proton Authenticator takes up around 87.3 MB of storage. It's recommended to download APKPure App to install Proton Authenticator successfully on your mobile device with faster speed.

Proton Authenticator

1K+Everyone

Proton AG
Jan 26, 2026

Trusted App

সর্বশেষ সংস্করণ 1.3.6 এ নতুন কী

Jan 26, 2026

Other:
- Biometric unlock improvements
- Updated core libraries.
- Translation updates.

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proton.android.authenticator
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Android 8.1+ (Oreo, API 27)
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