Proton Authenticator

1.3.7

Proton AG

4.88

9,412 reviews

100,000+
Downloads

Free

Secure, end-to-end encrypted, open source, and available on every device

Pros & Cons

Open-source, verifiable codebase for transparency
End-to-end encryption with offline TOTP generation
Cross-device sync with privacy protections
Biometric or PIN protection for quick, secure access

No downloads in the last 30 days (0 in the recent period)
Limited cloud-based backups or account-based sync compared to some competitors
QR code scanning and onboarding have had improvements in recent updates (ongoing refinements)

About Proton Authenticator

Proton Authenticator is a productivity app developed by Proton AG.

Download Statistics

Proton Authenticator has been downloaded 420 thousand times. In the last 30 days, the app was downloaded 35 thousand times.

User Ratings

Proton Authenticator is rated 4.88 out of 5 stars. The rating is based on 9.4 thousand ratings.

App Information

Proton Authenticator is FREE to download. The APK download size is 48.18 MB. The latest version available is 1.3.7. The last update was on March 27, 2026.

Technical Requirements

Proton Authenticator requires Android 8.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play August 2025.

Description

Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline.

More data about Proton Authenticator

Price	Free to download
Total downloads	420 thousand
Recent downloads	35 thousand
Rating	4.88 based on 9.4 thousand ratings
Ranking	Medium ranked
Version	1.3.7
APK size	48.2 MB
Number of libraries	0
Designed for Android	8.1+
Suitable for	Everyone
Ads	NO ads

App Performance Report

Get a detailed PDF report for Proton Authenticator with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Alternative downloads for the Proton Authenticator app

Proton Authenticator compared with similar apps

Common keywords of similar apps

Proton End Open Source Laws Free Apps Fixes Fix Authenticator Code Secure Encrypted Device Protect Offline Privacy Totp Account

Keywords missing from this app

App Accounts Authentication Codes Security Time Factor Password Otp Data Backup Google Access Online Passwords Qr Support Based Step Services Features Verification Protection Generate Easy Https Devices Login Works Manage Key Securely Facebook Instagram Stored Simple Reliable Multi Seconds Work

Google Play Rating history and histogram

Downloads over time

Proton Authenticator has been downloaded 420 thousand times. Over the past 30 days, it averaged 1.2 thousand downloads per day.

Changelog of Proton Authenticator

Show changelog

Developer information for Proton AG

Proton AG

support@protonmail.zendesk.com

Website

Legal name:

Address:

Phone number:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.

I'm the developer of this app

Comments on Proton Authenticator for Android

★★★★★ Vanguard Voltara · Apr 18, 2026

Just like the other proton apps, this authenticator is well-designed and works smoothly. Well done!

★★★★★ Philip Wright · Apr 29, 2026

This beats everything I've tried, including Microsoft and Google authenticators. It's clean, easy to read, and the next-code display is so useful I can't believe nobody else does this.

★★★★★ Michael Martinez · May 9, 2026

Oh thank you Proton, allowed me to move authenticator codes away from Google Auth & Microsoft Auth! The best privacy company

★☆☆☆☆ Leonardo García (Leo) · Jun 3, 2026

The UI looks bad. I wanted to switch from Stratum since I'm an Unlimited subscriber, but I wasn't expecting that. Then on import, there's no feedback to let you know it's importing, so I ended up importing twice before it told me it had imported. Then I decided to log in with my account, and now I have several copies of the same codes. The login process is also annoying since it won't work seamlessly with Proton Pass (email then password, instead of both together). Not sure why they bothered.

★★☆☆☆ Bean Seed · May 6, 2026

Was Swell but the swelling gone down now-you know what I mean? Ugh. Was the go to for my Gmail. And when Aura Cyberbreached Me, Welp, Proton passwords Everything -kept being changed, and I couldn't ever verify myself ever again BUT IT KEEPS ON CHARGING me and have authenticators through this as well. How much more is This Aura Cyber full scale breach going to cost me? Not Just me, But im a single Mom, of 3 special needs kids and a caregiver of my own mom now on the verge of homelessness.

★☆☆☆☆ Asmodeus · May 21, 2026

Very bad auth app keeps locking me out of my accounts the codes are not working

Google Play Rankings for Proton Authenticator

Top rankings

Rank	Country	Category	List
183	Germany	Productivity	Top Free
133	Finland	Productivity	Top Free
140	Switzerland	Productivity	Top Free
148	Denmark	Productivity	Top Free
149	Norway	Productivity	Top Free
177	Netherlands	Productivity	Top Free

Show all market rankings

Ranking history in Germany

AppBrain offers valuable information about your app and those of your competitors. Join AppBrain for free and claim this app to view more ranking data, view history etc.