Proton Authenticator

Secure 2FA Authenticator

Published by: Proton

Description

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 — without compromise.
KEY FEATURES
Encrypted iCloud Sync: Seamlessly sync your 2FA secrets across devices with end-to-end encryption.
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
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Screenshots

Proton Authenticator FAQ

  • Is Proton Authenticator free?

    Yes, Proton Authenticator is completely free and it doesn't have any in-app purchases or subscriptions.

  • Is Proton Authenticator legit?

    🤔 The Proton Authenticator app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.

    Thanks for the vote

  • How much does Proton Authenticator cost?

    Proton Authenticator is free.

  • What is Proton Authenticator revenue?

    To get estimated revenue of Proton Authenticator app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating

3.78 out of 5

41 ratings in United Kingdom

5 star
19
4 star
7
3 star
7
2 star
3
1 star
5
Ratings History

Proton Authenticator Reviews

Great, except…

///S13 on

United Kingdom

…I can’t sync with my Proton account because to do that I need the 2FA code. And I can’t see that because it’s in the app that’s asking for the 2FA code. I’m sure there’s a way, but what a silly circle

Worth the effort

brad4465545 on

United Kingdom

Wanted to switch to Proton’s ecosystem fully as I bought the family plan last week but was worried about having all my eggs in one basket by using this authenticator. Turns out that iCloud syncing means I can still get my codes from my Mac or phone without logging into my Proton account, eliminating that worry whilst keeping the convenience of grabbing codes from a Mac app. Took me 2 hours to switch from Authy but very much worth it!

Needs refining

d_v_b on

United Kingdom

The app does more or less what you need & let me get off an alternate product. It would benefit from a few refinements. I’m sure it will get there. It is reordering my keys still for some reason. Suggestions. - Password to encrypt/decrypt export/import. - Folders for keys to be grouped. - When keys are not shown, double tap to show for 30sec ? - Compact view by icon screen.

I expected better from proton

Gator don’t play on

United Kingdom

I fully acknowledge that proton often releases apps that only work on one platform, or that have minor bugs. To be expected I guess, but this one fails at the basics. Security professionals already found issues, and it can’t even sync across your proton accounts. So for the time being it can not be used until basic functionality is restored. They are aware of these issues, I write this review now as the app has just been updated and nothing has changed

Amazing support

Copernicus7 on

United Kingdom

Whilst I still think this app needs a little more tweaking I’ve been amazed at the support. I opened a ticket with Proton saying I was having trouble importing batches of accounts from Google Authenticator and it was fixed in under a day. If the other minor problems are fixed as quickly this will be a 5 star app in no time.

v1.1.3 perfect for me

K--c7 on

United Kingdom

I read the previous reviews, thought I would give this one a miss. However I really wanted to move away from Google Authenticator, and get redundancy across devices. Downloaded the app on Linux desktop, imported from Google Authenticator with ease, signed into proton to sync. Downloaded 1.1.3 for iOS, worked like a charm. I’m really sold on the proton ecosystem, going all in on subscription!

Can’t login to account using iPad version

Jobe77 on

United Kingdom

Update v1.1.3 - login issue now appears to be resolved for iPad version. Original: A key piece of functionality is the ability to ensure codes are saved and shared between devices. Unfortunately as others have said, this doesn’t work, making this part of the app useless.

Cannot log into Proton account!

JemTheWire on

United Kingdom

Update to the Update: Thank goodness, the latest update to v1.1.3 seems to cured the ‘log in to sync across devices’ issue. Also entries also appear alphabetised too. Only thing left for me to complain about is the truncated name. Please shorten it so it isn’t truncated. Call it Authenticator, for example. Thanks. Update: Even this latest update [1.1.2] does not correct this issue. I have contacted support, send a screen recording and also the logs but still doesn’t;t work. I am now giving up on this. It;s not fit for purpose and I am sure NOT going to store my valuable codes in it as it stands as I cannot risk them being deleted, As my previous review seems to have gone AWOL, I will post again. To enable ‘Sync Across Devices’ you need to either log into with your existing Proton account or create a free one. This is where my problems start. Using my Proton credentials to log into, it just drops back to the login screen. Even after accepting that my username/password are correct. Same applies if I create a free account. Enter my details and when I try to log into i just drops back to the login screen in screen. I must say that this only happens on both my Mac and iPad. I can log into OK with my iPhone which makes it even weirder. Another issue is with the ordering of the 2FA codes. You cannot alphabetise them and they seem to change order randomly too! I really want to like this app but for me it still seems like we are beta, or alpha, testers at the moment. Why does this review never appear? It says 12 reviews but doesn’t list that many.

Can’t even log in

wolfnavy on

United Kingdom

Actually a little shocking that Proton would release an app that has such fundamental issue and appears to be somewhat wid spread based on early reviews. I’m sure the app is going to be fine… once I can actually access it.

Expected Proton quality is way off mark

mintbar on

United Kingdom

As an Unlimited subscriber this release falls way short of the expectations. I guess it does the job but the UI is horrible and weirdly misaligned with the rest of Proton’s design language, no encrypted exports, no way of reordering entries (let me do alphabetical!) and no pinning to the top. I’d also like for entries to be waaaay more compact so it fits more in a single screen and it’s easier to read, and to be able to tag entries (see Ente Auth). C’mon, Proton! I’ll revise this review later if things change.

Store Rankings

Ranking History
Category Rankings
Chart
Category
Rank
Top Free
139
Top Free
152
Top Free
164
Top Free
176
Top Free
233

Keywords

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Proton Authenticator Revenue

Last 30 days

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App Info

Publisher
Proton
Languages
English, Dutch, French, German, Italian, Polish, Portuguese, Russian, Spanish, Turkish
Recent release
1.3.2 (2 weeks ago )
Released on
Jul 31, 2025 (4 months ago )
Last Updated
4 days ago
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