Proton Authenticator is made and published by Proton AG. AppBrain is an independent app data site and isn't affiliated with Proton AG. The app name, icon, screenshots and description belong to Proton AG and are shown as published on the App Store.

About Proton Authenticator

Proton Authenticator is a productivity app developed by Proton AG.

User Ratings

Proton Authenticator is rated 4.37 out of 5 stars. The rating is based on 270 ratings.

App Information

Proton Authenticator is freely available from the App Store. The app size is 119.23 MB. The latest version available is 1.4.4. The last update was on August 26, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since July 2025.

Description by Proton AG (from the App Store)

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

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Price	Free
Rating	4.37 based on 270 ratings
Ranking	Not ranked
Version	1.4.4
App size	119.2 MB
Suitable for	Everyone

Screenshots

Screenshots by Proton AG, from the the App Store listing

Official page on the App Store

Changelog of Proton Authenticator

No changelog data

Developer information for Proton AG

Proton AG

Address:

Comments on Proton Authenticator for iOS

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App Store Rankings for Proton Authenticator

This app is not ranked

Technologies used by Proton Authenticator

Frequently asked questions about Proton Authenticator

Is Proton Authenticator free?

Yes. Proton Authenticator is free on the App Store.

Is Proton Authenticator still available?

Yes. Proton Authenticator is on the App Store, and the last update we saw was on August 26, 2026.

How large is the Proton Authenticator download?

Proton Authenticator is 119.23 MB to download.

Is Proton Authenticator suitable for children?

App Store rates the content of Proton Authenticator as suitable for everyone.

How do people rate Proton Authenticator?

Proton Authenticator scores 4.37 out of 5 stars, from 267 ratings on the App Store.

Who made Proton Authenticator?

Proton Authenticator was developed by Proton AG. It is listed in the productivity category on the App Store.

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Proton Authenticator