# Proton Authenticator & 2FA — Secure verification, MFA & OTP

> Secure, open-source, end-to-end encrypted 2FA authenticator with Swiss privacy. (iPhone/iPad app by Proton AG.)

- Source: https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667 (this page in markdown: same URL + `.md`)
- Developer: [Proton AG](https://appshunter.io/developer/979659484)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.40/5 from 314 App Store ratings · 255 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 120 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Polish, Brazilian Portuguese, Russian, European Spanish, Turkish
- Released: 2025-07-31
- Data updated: 2026-10-19
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667/reviews.md

## What is Proton Authenticator & 2FA?

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

## Key features

- 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

## What do users think of Proton Authenticator & 2FA?

Reviews of Proton Authenticator & 2FA are mostly positive: the Productivity app is rated 4.4/5 from 314 App Store ratings. What users like most: cross-platform support, secure cloud sync. Top complaints: buggy UI (scrolling jitters, random sorting), lack of customization options (pin favorites, change icons). Summarized from real user reviews.

**Pros**

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

**Cons**

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

**Commonly reported bugs**

- Sync/login loop on iPad
- 2FA input broken on non-iPhone devices
- Screen strobing on iPad
- Duplicate entries after import

**Most requested features**

- PIN unlock for desktop
- Alphabetical sorting option
- Export function (not just Proton-specific backup)
- Native macOS app
- Option to hide item icons

## Is Proton Authenticator & 2FA safe?

Proton Authenticator & 2FA appears safe based on user ratings. The AppsHunter Safety Score for Proton Authenticator & 2FA is 87 out of 100. This assessment is based on 314 user ratings, with an App Store average of 4.4 out of 5. Of 314 App Store ratings, 82.8% point to a safe experience, 6.7% suggest some concerns, and 10.5% point to a risky experience.

## Is Proton Authenticator & 2FA legit?

Proton Authenticator & 2FA appears to be a legitimate app. The AppsHunter Legitimacy Score for Proton Authenticator & 2FA is 88 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (10 of 255)

All indexed reviews: https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667/reviews.md

### 5/5 — Proton never disappoints

*2026-10-17*

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

### 5/5 — Near perfect

*2026-10-14*

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

### 2/5 — iOS 16 unsupported

*2026-10-12*

... 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.

**Developer response:** 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.

### 5/5 — Excellent

*2026-10-11, version 1.4.4*

Does what it says on the tin

### 4/5 — Good for what it is

*2026-10-11, version 1.4.4*

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.

### 5/5 — Practical

*2026-10-09*

I’ve been using Proton’s other apps for the past few years and have no complaints.

### 5/5 — Mein Favorit

*2026-10-08*

Ich liebe die Ästhetik des Authenticators. Ansonsten ist es halt ein Authenticator und macht das was er soll. Was ich mir wünschen würde und was leider kein mir bekannter Authenticator bietet, sind Kategorien. Wieso kann man seine Codes nicht gliedern in z.B. Social Media, Shopping, Privat usw. Weder Authy, Google, Microsoft oder Proton haben dieses Feature.

### 1/5 — Difficult using

*2026-10-07, version 1.4.4*

Once downloaded, can’t access any codes

### 2/5 — Ehh…

*2026-09-30, version 1.4.4*

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.

### 5/5 — Perfeito

*2026-09-28*

Totalmente integrado entre os dispositivos

## Frequently asked questions about Proton Authenticator & 2FA

### 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.

## Version history (last 5 releases)

### 1.4.5 — 2026-10-14

Added the ability to disable website thumbnails (favicons)

### 1.4.4 — 2026-08-26

Improved app stability, accessibility, and backup options

### 1.4.3 — 2026-06-25

- Improved animations for a smoother scrolling experience
- Fixed issues with search functionality

### 1.4.2 — 2026-06-22

- Several bug fixes
- iCloud sync re-added, but with a warning

### 1.4.1 — 2026-04-27

Your 2FA codes now live entirely on your device, giving you complete control over your security. We’ve introduced significant improvements to the backup screen, featuring a new system that works seamlessly to ensure your data remains secure and accessible. Alongside these functional upgrades, we’re celebrating the adoption of our new Liquid Glass design. The app now embraces this latest design language, delivering a more modern and native experience that feels fresh and intuitive.

## Apps similar to Proton Authenticator & 2FA

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| [Standard Notes](https://appshunter.io/ios/app/standard-notes/id1285392450) | 4.7 (3,751) | Free | Productivity |
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## More apps by Proton AG

- [Proton Mail - Encrypted Email](https://appshunter.io/ios/app/proton-mail-encrypted-email/id979659905)
- [Proton VPN: Fast & Secure](https://appshunter.io/ios/app/proton-vpn-fast-and-secure/id1437005085)
- [SimpleLogin - Email alias](https://appshunter.io/ios/app/simplelogin-email-alias/id1494359858)
- [Proton Drive: Cloud Storage](https://appshunter.io/ios/app/proton-drive-cloud-storage/id1509667851)
- [Proton Calendar: Secure Events](https://appshunter.io/ios/app/proton-calendar-secure-events/id1514709943)
- [Proton Pass - Password Manager](https://appshunter.io/ios/app/proton-pass-password-manager/id6443490629)

All apps by Proton AG: https://appshunter.io/developer/979659484

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-19.*