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 • 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 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
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.
updated to the new version. not usable anymore. doesn't respond to anything I do. only open half screen with 3 eamils and can't tap any emails. there is a drag box/bar I drag it to see more emails and then let go and it just go back to only showing 3 emails and not responding to taps. Hope this helps to fix... good luck 🤞 did the un-installed and removed cache. didn't help
1 person found this review helpful
Proton AG
October 22, 2025
Hello! Sorry to hear about that. If you're seeing the welcoming screen, try swiping through the steps to dismiss it. Our team is working on improving this. You can also try clearing the app's data from your device's settings → "Proton Mail" → "Apps" → "Storage". If the issue persists, report it via the "Report a problem" feature in the app.
Nessy D'Aglarele
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September 30, 2022
Haven't been able to open and read new emails since the 23rd of July. Countless reboots and various Android updates didn't help so far, who knows, maybe the next app update will. It's annoying, but at least I still receive notifications for some new emails, so only using the app to remind me to login on my pc to read and reply to my email for now.
5 people found this review helpful
Proton AG
October 3, 2022
We're sorry to hear that. Resolving the loading issue experienced by some of our users is on top of our developers' priority list. Meanwhile, try clearing the app cache or log out and back in to see if this helps. You can also turn off 'Alternative routing' (app settings) or clear the app data from the System settings (which will log you out).
Jeffrey Rocchio
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February 17, 2025
Trying to make the transition from Gmail. In this process I've discovered how important being able to apply formatting to the body of my email text is. This app does not permit it and it's driving me a bit crazy. It is otherwise pretty close to the Gmail app in terms of its other features as far as I can tell so far.
50 people found this review helpful
Proton AG
February 18, 2025
Thank you for your feedback and review! We'll forward your request for supporting formatting options in the app to the team, to help prioritize future improvements.
What’s new
We’ve completely rebuilt the Proton Mail app to give you a faster, smoother, and more reliable experience. - Faster performance: Emails open instantly, scrolling is fluid, and routine actions like archiving or replying are now faster too! - Modern design: A refreshed interface with simpler navigation makes it easier to manage your inbox. - Offline mode: Read, write, and organize emails even without internet. Everything syncs when you’re back online. Update today to enjoy the new Proton Mail!