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Proton Authenticator

Proton Authenticator

Secure 2FA Authenticator

242 ratings
242 reviews
🔧 Utilities
📊 Productivity
Free

Details

  • Released
  • Updated

Features

Developer

Proton AG
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Proton Authenticator screenshot #1 for iPhone
Proton Authenticator screenshot #2 for iPhone
Proton Authenticator screenshot #3 for iPhone
Proton Authenticator screenshot #4 for iPhone
iphone
ipad
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Reviews summary↘︎
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About

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

✓End-to-end encrypted iCloud sync
✓Effortless import from other authenticators
✓Secure backup and export
✓Swiss privacy by design
✓Open source and transparent
✓Offline support
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What users say

Summarized from real user reviews of Proton Authenticator. Based on 242 reviews and a 4.4/5 average, it highlights the 4 positives and 3 negatives reviewers mention most about this Productivity app.

Positive things

  • 🚀Cross-platform support
  • 🔒Secure cloud sync
  • 👍Easy import from other authenticators
  • 🚀Convenient 'next' feature for codes

Negative things

  • 🐛Buggy UI (scrolling jitters, random sorting)
  • 👎Lack of customization options (pin favorites, change icons)
  • 🐛Sync/login issues on iPad
See all reviews

What's New in Proton Authenticator

1.4.4

August 26, 2026

Improved app stability, accessibility, and backup options

User reviews

Most RecentHighest RatedLowest Rated

Ehh…

I first saw this and was excited because I know proton is private, so i downloaded it and transferred my codes from Google Authenticator (this is an option in the app to import from Google) but when I looked at the codes they were generating different numbers, tried to use one and it didn’t work. Ok I’ll just delete a code and try to re add it in proton “code not supported”. Good idea but doesn’t currently work.
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AppleReviewer16AppleReviewer16

Good alternative but ugly

As an Authenticator app it’s completely fine and functional and a great alternative to google Authenticator. But the app itself is not very user friendly or appealing to look at. Which is odd because the other proton services have very good UX. The sync option sometimes is a bit temperamental but has been a bit more stable recently. Overall it’s good but the UX can be improved.
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fayez133fayez133

Terrible

In trying to set this up. You must log into your account. I use this program. Well you can’t do both at the same time. I do not recommend
SpikeUnderFireSpikeUnderFire

The proton start

3/5
Wallet reviewedWallet reviewed

LOST EVERYTHING

Opened app one day to randomly have no codes inside, thank god I had backups in other authenticator apps. Be careful…
mmil11k30mmil11k30
See 237 more reviews

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User experience

🐞

Reported Bugs

4 issues

Sync/login loop on iPad

Bug

2FA input broken on non-iPhone devices

Bug

Screen strobing on iPad

Bug

Duplicate entries after import

Bug
✨

Requested Features

5 requests

PIN unlock for desktop

Feature

Alphabetical sorting option

Feature

Export function (not just Proton-specific backup)

Feature

Native macOS app

Feature

Option to hide item icons

Feature

FAQ

What does Proton Authenticator do?

Proton Authenticator is an app designed to securely store and generate your two-factor authentication (2FA) codes. It helps protect your online accounts by requiring a second verification step beyond just your password, ensuring enhanced security.

What are the key features of Proton Authenticator?

Key features include end-to-end encrypted iCloud sync for seamless cross-device access, effortless import from other authenticator apps like Google Authenticator, secure backup and export options, and a strong commitment to Swiss privacy laws. It is also open source and ad-free.

Is Proton Authenticator free to use?

Yes, Proton Authenticator is completely free to use. No Proton account is required, and the app is ad-free, offering a private and secure experience without any cost to the user.

What devices is Proton Authenticator compatible with?

The app offers offline support on both mobile and desktop applications, suggesting broad compatibility across various platforms. This allows you to access your 2FA codes even without an internet connection.

How does Proton Authenticator ensure privacy and security?

It is built under Switzerland's strict data protection regulations and utilizes end-to-end encryption for all synced data. The app is also open source, meaning its code is auditable, and it does not track users or display ads, prioritizing user privacy.