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Last updated on: 2026-06-18
Android Apps > Productivity > Proton Authenticator
Proton Authenticator icon

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

Proton Authenticator Screenshot 1 of 6
Proton Authenticator Screenshot 2 of 6
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Proton Authenticator Screenshot 6 of 6

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.
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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

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Authenticator App - Secure 2FA icon Authenticator App - Secure 2FA
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Authenticator App 2FA icon Authenticator App 2FA
TKTech Global
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Authenticator 2FA OTP Backup icon Authenticator 2FA OTP Backup
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Authenticator icon Authenticator
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Authenticator App: 2FA | MFA icon Authenticator App: 2FA | MFA
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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

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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

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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

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Technologies used by Proton Authenticator

Proton Authenticator is requesting 10 permissions and is using 0 libraries.
Show details
TOTP Authenticator: 2FA MFA icon TOTP Authenticator: 2FA MFA
2FA Authenticator (2FAS) icon 2FA Authenticator (2FAS)
Authenticator App - Secure 2FA icon Authenticator App - Secure 2FA
Sentinel 2FA Authenticator icon Sentinel 2FA Authenticator
Authenticator App 2FA icon Authenticator App 2FA
Authenticator 2FA OTP Backup icon Authenticator 2FA OTP Backup
Authenticator icon Authenticator
Authenticator App: 2FA | MFA icon Authenticator App: 2FA | MFA

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