Proton Mail: Encrypted Email

Proton AG

About this app

Keep your conversations private. Proton Mail is encrypted email from Switzerland. Used by millions worldwide, our all-new email app protects your communications and has everything you need to easily manage your inbox.

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

With the all-new Proton Mail app, you can:
• Create a @proton.me or @protonmail.com email address
• Send and receive encrypted emails and attachments with ease
• Switch between multiple Proton Mail accounts
• Keep your inbox tidy and clean with folders, labels and simple swipe-gestures
• Receive new email notifications
• Send Password-protected Emails to anyone
• Enjoy your inbox in dark mode

Why use Proton Mail?
• Proton Mail is free — We believe everyone deserves privacy. Upgrade to a paid plan to get more done and support our mission.
• Easy to use — Our all-new app has been redesigned to make it easier to read, organize, and write your emails.
• Your inbox is yours — We don’t spy on your communications to show you targeted ads. Your inbox, your rules.
• Rigorous encryption — Your inbox is secured on all your devices. No one can read your emails but you. Proton is privacy, guaranteed by end-to-end and zero-access encryption.
• Unmatched protection — We offer strong phishing, spam, and spying/tracking protection.

Industry Leading Security Features
Messages are stored on Proton Mail servers using end-to-end encryption at all times and are transmitted securely between Proton servers and user devices. This largely eliminates the risk of message interception.

Zero Access to Your Email Content
Proton Mail's zero access architecture means that your data is encrypted in a way that makes it inaccessible to us. Data is encrypted on the client side using an encryption key that Proton does not have access to. This means we don't have the technical ability to decrypt your messages.

Open-Source Cryptography
Proton Mail's open-source software has been thoroughly vetted by security experts from around the world to ensure the highest levels of protection. Proton Mail only uses secure implementations of AES, RSA, along with OpenPGP, while all of the cryptographic libraries used are open source. By using open-source libraries, Proton Mail can guarantee that the encryption algorithms used do not have clandestinely built-in back doors.

Proton Mail in the press:

“Proton Mail is an 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 that met at CERN promises to bring secure, encrypted email to the masses and keep sensitive information away from prying eyes.” Huffington Post

Follow Proton on social media for all the latest news and offers:
Facebook: /proton
Twitter: @protonprivacy
Reddit: /protonmail
Instagram: /protonprivacy

For more information, visit: https://proton.me/mail
Our open-source code base: https://github.com/ProtonMail

Ratings and reviews

You cannot send emails as the send icon rarely works. But you may not get that far - the app refreshes while typing your email and you lose it. Most often does not save the draft. If you ever do get it to send, your recipient will tell you they got a blank email. Also, it takes forever to open and to display a folder that you switch to, like over a minute. Even when reading emails, the app will refresh and place you back at the top. Stop developing and just revert back to what you had a year ago

I'm a paying user and I'm pretty disappointed in the app, for which I had high hopes. In the past couple of years it's worked quite well with no glitches. But in the last couple of months, the mail app has become unreliable. Connections time out. Drafts get sent without my asking to have them sent. Some emails get sent without all of the content I added. Recipients report getting blank emails. I opened a support case but things have not improved. Look, I don't want to go back to Gmail. Help!

This app is terrible. When I had the free version a couple of years ago, it worked great. So I upgraded to a paid version to support the company. I have been having trouble with it ever since, with short periods of it working perfectly. 1) When I'm scrolling through my inbox, it will flicker and go back to the top of the list, over & over. 2) It frequently doesn't save drafts, so when I click Send, if it actually goes, the recipient receives a blank email. There's more but not enough room here.

What's new

* Stability improvements related to message sending.