“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 1.11.2

- In-app purchase stability improvements
- Bug reporter enhancement

Ratings and Reviews

4.4 out of 5
560 Ratings
560 Ratings
Jibran Syed ,

Wonderful service. Needs more notification sounds

I have found ProtonMail to serve my needs well after moving out of a popular privacy-unfriendly email service.

One feature I would love to see is an option to choose different notification sounds. Currently, the app uses a very generic sound that I would rather not use. Perhaps allow access to built in iOS notification sounds, or provide your own collection of sounds.

nonetrix ,

Better than outlook and gmail and yahoo mail

Proton mail is awesome it looks better than outlook and gmail and yahoo and you get better Privacy and there is no ads probably going to get rid of my gmail and outlook account soon

SoCal i miss Rain ,

App logged me out and I might lose all emails

What is the point of having an App if it will log me out? No other app does this.
Now I can’t find where I wrote the password. If I reset it, it’s telling me I will lose everything.
Guess I won’t be signing up again.
I had original alerts set up. But since I got a notice with every single email, I shut that off.
The other problem is that emails aren’t cataloged /filed under the same heading.

Developer Response ,

Hello! We are logging out users automatically when access token expires (after about a month of inactivity) to prevent misuse of tokens by possible eavesdrop parties. Please, contact our customer support team to check the options of password restore.


Proton Technologies AG
166.6 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Dutch, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Romanian, Russian, Spanish, Turkish, Ukrainian
Age Rating
Rated 4+
© Proton Technologies AG
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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