“ProtonMail offers encrypted email, which makes it virtually impossible for anyone to read it except the sender and the recipient.” Wall Street Journal

ProtonMail is the world’s largest encrypted email service with over 1 million users. The ProtonMail secure email app for iPhone and iPad brings easy-to-use email encryption to your mobile device by seamlessly integrating PGP end-to-end encryption. ProtonMail also provides a modern user interface with a full set of innovative features such as customizable swipe gestures and the ability to send expiring emails.

Since we were founded by CERN scientists in 2013, we have been joined by citizens from around the globe who have supported our mission to protect online privacy. Our mobile app was made possible by a record-breaking $550,000 donation campaign. With the ProtonMail app, you can now create your own free ProtonMail email account and start experiencing the secure email of the future.

Why use ProtonMail?

• Ensure your emails stay private and cannot be intercepted or disclosed to third parties
• End-to-end encryption, OpenPGP compatible
• Easy-to-use: encryption is done automatically and is completely invisible to the user
• Zero-access: all messages are stored in encrypted format—not even ProtonMail can read your messages
• Open source: ProtonMail's encryption is open to inspection by security experts from around the world
• Free: ProtonMail is 100% free, no catches.
• Swiss privacy and neutrality: ProtonMail is hosted entirely in Switzerland, under the protection of the world's strongest privacy laws

With the ProtonMail app, you can:

• Create a new email address with automatic PGP key creation and management
• Send and receive encrypted emails and attachments automatically
• Set timers for messages to self-destruct after sending
• Quickly organize emails with customizable swipe gestures and labels
• Get push notification of new emails
• Send password protected encrypted emails to non-ProtonMail email addresses

ProtonMail in the press:

“ProtonMail is a gmail-like email system which uses end-to-end encryption, making it impossible for outside parties to monitor.” Forbes

“A new email service being developed by a group from MIT and CERN promises to bring secure, encrypted email to the masses and keep sensitive information away from prying eyes.” Huffington Post

What’s New

Version 1.11.14


TouchID option was shown when FaceID is disabled for PM app
Some users did not immediately see new messages in the mailbox
Message from some particular senders was not properly rendered
Links were unable to open if the Default Browser is set to Brave
The Touch ID prompt button on the login screen was inconsistent on iOS 13
Sharing an item from another application caused the app to crash
Some messages were showing a decryption error in the app
The composer was not restored correctly in some cases

Some words in settings were cut off
Added In-App Safari view as a browser option
Stability improvements

Ratings and Reviews

4.3 out of 5
1.1K Ratings

1.1K Ratings

Mr. Owen Campbell ,

Very satisfied

Getting off everything Google this year, and Proton Mail has been an important piece of this puzzle. The user interface is pleasantly simple, yet has the functionality we’ve come to expect (multiple email addresses if you upgrade to the paid platform, filters and labels that automatically send emails to different folders, password protection for the app as well as FaceID). The customer service is a highlight for me: I just shoot an email to PM with any question I have and they get back to me in about 24 hours. Some of the reviewers criticize the platform on the grounds that the emails are only E2EE if both users are using PM. But my understanding is that that’s a truth about tech in general. Signal is E2EE for example but only if both people are in Signal. PM’s solution to this is password protection for emails; the recipient gets a link to your email which expires after a period of time you can set.

I’m looking forward to the E2EE calendar and cloud storage (esp because of this iCloud/FBI scandal that Reuter’s recently reported). Keep em coming Proton Mail!

Developer Response ,

Thank you Owen! Your support is greatly appreciated.

HeySRI ,

Great service, lacking a few features to make it a home run

ProtonMail is an excellent service for both the privacy conscious and the masses. The reason so many email providers are free is because it the provider is in a privileged position to scan all of your emails. ProtonMail sets itself apart from the rest, and doesn’t read your email, or store it in a format that they can access.

I would highly recommend a paid plan, even if you don’t need any paid features. Pay for your usage with your money, not your data.

However, the absence of one feature makes the ProtonMail experience painful (-1 star): No notification dismissal syncing. If I read an email on my iPad, it will still show the notification on my phone until I open the app. Almost every other mail/chat app has notification dismissal syncing, but when I asked ProtonMail about implementing this feature, they said it was not possible. If they found a way to add this feature (and it’s possible considering other services can do it), then this service would be a true 5 stars.

Developer Response ,

Hi! Thank you for your feedback. We plan to improve our notification synchronization in the near future. We would appreciate if you consider updating your review once this feature is released.

VC Fan ,

Face ID not working to login to App

It seems that Face ID is not working to login to the App. I’ve tried multiple times by first logging in manually and then enabling Face ID.

But every time I logout and then try to log back in, Face ID is not initiated. I login manually again and see that Face ID is disabled. I enable it again, but it goes back to being disabled every time I close the App.

Is the Face ID function only for access when the App is logged in, or is it designed to allow fore using Face ID to login when initially opening the app?

Reply to developer: I saw your reply and do not agree because after three days of trying, the App will now allow me to login with Face ID. I don’t know what changed in the App, but I just kept doing the same thing. I have now installed the ProtonMail App on my wife’s phone and Face ID is working properly too. Increased my rating from 3 to 4 stars.

Update #2: thanks for replying back to feedback so quickly! No, I did not need to choose or select any keychain or password icon. When the app is completely closed (swiping up from the bottom, on both an iphone X and XS Max, to close the ProtonMail app), then pressing the PM icon only once to open the app: FaceID now comes up immediately and after correct recognition, the PM app is unlocked and accessible. It was not like this when I first installed the app, but now it works this way.

Developer Response ,

Face ID can only be used for unlocking the app after you’re already logged in, and settings will go back to default ones once you logout.

That is done by security reasons: we do not want to keep any user-related data on device after logout. Storing credentials required for login would be totally insecure in case your device is stolen and hacked.

Update: probably, you mean FaceID auth initiated by Password AutoFill feature, that happens when you tap ‘🔑 Passwords’ button above the keyboard? That is system level feature and not part of our app. In order to make it work, you’ll need to save login and password in iCloud Keychain - Apple’s password manager - in device settings:
Settings > Passwords & Accounts > Website & App Passwords


Proton Technologies AG
196.2 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Catalan, Croatian, Czech, Danish, Dutch, French, German, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kabyle, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian

Age Rating
In-App Purchases
  1. ProtonMail Plus (1 year) $59.99


  • Wallet

    Get all of your passes, tickets, cards, and more in one place.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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