Proton Authenticator & 2FA

Proton Authenticator & 2FA

Secure verification, MFA & OTP

314 ratings
255 reviews
Free

Details

Released
July 31, 2025
Updated
October 14, 2026

Features

Proton Authenticator & 2FA screenshot #1 for iPhone
Proton Authenticator & 2FA screenshot #2 for iPhone
Proton Authenticator & 2FA screenshot #3 for iPhone
Proton Authenticator & 2FA screenshot #4 for iPhone
iphone
ipad
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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 about Proton Authenticator & 2FA

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+1

What's New in Proton Authenticator & 2FA

1.4.5

October 14, 2026

Added the ability to disable website thumbnails (favicons)

User reviews

Proton never disappoints

Yet another example of how to do it right. Proton excels at securing our online experience. Zero complaints.

Near perfect

Fast, simple, not tied to a server. The best I’ve used.

iOS 16 unsupported

... which means that I have to go back to Google Authenticator. Unfortunately I only found out after having gone through the hoops to set the whole thing up on my iPad first. Stop forcing us to buy new tech, creating endless ewaste rubbish. iOS 16 is perfectly secure, as evidenced by the fact that Wise bank still happily support it with biometric verification, facial scanning, etc.
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Response from developer

Sorry to hear that. The Proton Authenticator app requires iOS 17.0 or later. Nonetheless, we've passed on your feedback to the team accordingly.

Excellent

Does what it says on the tin

Good for what it is

Always good to see a privacy focused product. Moved away from Microsoft Authenticator a while back, I like this product. My only complaint would be that some 2fa apps don’t allow exports (presumably to keep people trapped to that app) but that’s not your fault so yea.

Developer apps

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.