Proton Mail: Encrypted Email

3.7
45.6K reviews
5M+
Downloads
Content rating
Everyone
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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 @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
Updated on
Jul 27, 2022

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
3.7
45.6K reviews
Lara
August 11, 2022
I really liked the old app. The new one is very frustrating. Every week it seems like there's a new problem with it. The latest issue is for the last few days about a quarter of the emails I'm sending are going through to the recipient with all the text erased from them. They also show up in my "sent" folder with all the text that I typed missing. This is a great company and I want to support them but I'm finding the app almost unusable now.
Did you find this helpful?
Proton AG
August 11, 2022
That doesn't sound right at all. Could you please report this behavior to us at https://proton.me/support/contact so we can investigate further and help you with troubleshooting? In the meantime, please try clearing the app cache from the app's settings menu, or reinstall the app altogether to see if that helps.
ZhaoZoharEX JK
August 4, 2022
I have been using for a few months now and so far I enjoy it. It's gradually helping me break my reliance on the Google ecosystem. I personally like the new UI, it's sleak. A few minor hiccups here and there, the only issue I have is sometimes the fingerprint doesn't work immediately when I open an email from notifications. But that easily could just be my device too, and honestly it's a minor issue at best, it doesn't take from the overall experience for me.
5 people found this review helpful
Did you find this helpful?
Proton AG
August 5, 2022
Thank you for your feedback and review! We are sorry to hear about the issue you've experienced. If it's not too much trouble, you can report the issue to us using the in-app "Report bug" button so we can investigate further and help you with troubleshooting.
Mark Aldridge
July 27, 2022
Noooooo, you had to go and change the UI around. The controls were moved from the top to the bottom (why!?) And there is no more temporary "undo" option after deleting a message. Additionally, now there is no way to see the complete subject line if it is long and truncated. Sometimes it's best to leave well enough alone; don't change for the sake of changing.
31 people found this review helpful
Did you find this helpful?
Proton AG
July 1, 2022
We're sorry to hear that you feel that way. We will forward your feedback regarding the new version of the app to our product team to help them consider future improvements. We'd appreciate it if you revisited your rating as the support of individual users helps us provide privacy worldwide.

What's new

Introducing Proton's refreshed look.
As we continue to make privacy accessible to everyone, we've updated our apps to provide you with an even better experience with our services.
Proton - Privacy by default