Proton Mail: Encrypted Email

49.8K reviews
Content rating
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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 or 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:
Our open-source code base:
Updated on
May 18, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

47.5K reviews
Amanda Vinyard
May 20, 2023
I don't need anything too fancy in an email app, so this is largely sufficient for me. Only feature suggestion I have at this point would be adding a "select all" button to the inbox and folders. Oddly simple thing to not have. Also, still no 'schedule send' on the Android app. Otherwise, good. The 100% lack of spam has been excellent.
14 people found this review helpful
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Proton AG
May 22, 2023
Thank you for your positive review! We've added your vote to the existing feature request for supporting the 'Select All' functionality, to help prioritize future implementations. We are working on expanding the 'Schedule send' feature to Android as well. In the meantime, you can already view and cancel scheduled messages within the app.
Conrad Allen
May 28, 2023
Works well. My only suggestion that I care about at the moment is to make the notification icon purple. It's always grey which is kinda bland and sucky, but more practically it doesn't distinguish itself very well from other notifications (compared to, say, Gmail using red for its icons), nor does it fit very well with the general design language/theming of Proton as a whole.
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Socialism Sucks
April 24, 2023
Proton is a great company and I am happy to be a customer and support their work. My only complaint with the Android app at the moment is that when you select "show all content" the first time, it usually makes the entire email go blank. You have to back out of the email completely, reselect it from your inbox again, and then click "show all content" a second time for it to display properly. It is a minor nuisance but it can be quite annoying to do it for almost every email.
68 people found this review helpful
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Proton AG
May 3, 2023
Hi! Our developers have been made aware of this behavior and they are looking into the potential causes and solutions for it. In the meantime, you can opt to load remote content by default by navigating to Settings → Account Settings → Privacy. We apologize for the inconvenience.

What's new

* Stability fixes and performance improvements linked to syncing