ProtonMail - Encrypted Email


Description of App: 

"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. If you like our project, you can donate or upgrade to a premium account.
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 timer for messages to self-destruct after sending.
Quickly organize emails with customizable swipe gestures and labels.
Get push notifications of new emails.
Send password protected encrypted emails to non-ProtonMail email addresses.

Apple Watch Support: 




Free or Paid: 


Device(s) App Was Tested On: 


iOS Version: 


Accessibility Comments: 

The app is mostly acceccible with VoiceOver.

VoiceOver Performance: 

VoiceOver reads all page elements.

Button Labeling: 

Most buttons are clearly labeled.


There are some minor accessibility issues with this app, but they are easy to deal with.

Other Comments: 

On the sign-up screen, there is an unlabeled button. That button takes you to a menu. You can choose a domain like,, or

Developer's Twitter Username: