Proton Mail: Encrypted Email

In-app purchases
92.7K reviews
Content rating
Everyone
10M+
Downloads
Content rating
Everyone
Learn more
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About this app

Proton Mail's all-new encrypted 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
• Send and receive Gmail emails directly inside Proton Mail
• Keep your inbox tidy and clean with folders, labels and simple swipe-gestures
• Receive new email notifications
• Send Password-protected Emails to anyone
• Keep important emails in focus with automatic, private categories
• 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 across all your devices. No one can read your emails but you. Proton protects your data with zero-access encryption and end-to-end encryption between Proton users or with password protection.
• 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 Easy Switch
Migrate from Gmail, Outlook, Yahoo, iCloud Mail or AOL to Proton Mail in just a few taps. Your messages, calendars and contacts are transferred automatically, so you’re up‑and‑running in moments—without any manual exporting or importing.

Gmail Auto‑forwarding
Enable auto‑forwarding from any number of Gmail accounts and funnel all the emails that matter into your Proton Mail inbox. Preserve Gmail’s convenience while adding an extra layer of privacy protection.

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
A trusted email app that uses end-to-end encryption and offers advanced security
Updated on
Aug 21, 2026

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, Contacts and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

88.9K reviews
Songbringer
June 18, 2026
4 days. App keeps force closing. Reinstall didn't rectify it. It logged me out & the force closing prevents logging in. This is a known issue, so stop the lame clear cache/data garbage. Telling numerous people with this issue they're entering credentials wrong is not a good look. It's your mess, fix it. Getting rid of this trainwreck for good. I'll log in via my PC. I won't have to wait for a "fix" that'll never occur. I just cut my finger off...I'll clear my cache and reinstall it 🙄🤡.
13 people found this review helpful
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Proton AG
June 18, 2026
Our team is looking into the potential causes and solutions for this behavior. We apologize for any inconvenience caused in the meantime.
Bob Sweet
May 26, 2026
Customer service is trash. Their website tricks you into thinking you're buying one thing but it switches to another. They push hard on expensive packages with things I don't want, while not allowing me to get what I want. I lost half my time left on my account when I was tricked into the wrong purchase. I don't trust this shady company anymore. Edit: To the bot, I spent 3 weeks hoping to fix the issue but got nowhere. Couldn't get a refund. Couldn't even get back the 5 months they deleted
12 people found this review helpful
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Proton AG
May 26, 2026
Our subscription options and pricing are presented before checkout, and plan changes are applied according to the terms shown during the purchase process. If you believe something was applied incorrectly, and you've already contacted our support team, share your ticket number with us here so we can look into your case.
Canadoug Toronto
June 16, 2026
Stop working entirely. FAIL. Also sleazy advertising trick. In the app interface, the upper right corner shows an icon with a typical alert dot on it. In fact, it is not an alert dot... it is built into the icon. It is designed to get you to press it to see their upgrade offer. The dot can not be turned off, and is just there to fool you into pressing the icon. This is bad interface design, deceptive, and annoying. I expect better of an otherwise reliable company than cheap trick.
16 people found this review helpful
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Proton AG
April 30, 2025
Thank you for your feedback! We do not profit off your data, and the only way we maintain our services, as well as make free accounts possible, is through the support of our paying users. We offer free accounts with limited features which are subsidized by the paid ones with more features.

What’s new

Multiple fixes and performance improvements.