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

With the ProtonMail app, you can now create your own free ProtonMail email account and start experiencing the secure email of the future. Our mobile app was made possible by a record-breaking $550,000 donation campaign. 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. 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.

The ProtonMail secure email app for Android brings easy-to-use email encryption to your mobile device by seamlessly integrating PGP end-to-end encryption. ProtonMail is the world's largest encrypted email service with over 2 million users. 'ProtonMail offers encrypted email, which makes it virtually impossible for anyone to read it except the sender and the recipient.' Wall Street Journal

Proton email.