Proton Mail: Encrypted Email

In-app purchases
97.2K reviews
Content rating
Everyone
10M+
Downloads
Content rating
Everyone
Learn more
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About this app

Proton Mail is the encrypted email app trusted by over 100 million people. Get a secure, private email address protected by end-to-end encryption, with no ads, no AI training and no inbox scanning. Based in Switzerland and protected by some of the world's strictest privacy laws. Your inbox, your rules.

Why choose Proton Mail for secure email
✔ Free encrypted email: create a free @proton.me or @protonmail.com email address
✔ Password-protected emails: send encrypted emails to anyone, even people who don't use Proton
✔ Spam, phishing and tracker protection: with built-in spam filters, phishing alerts and email tracker blocking
✔ Organize your inbox: with folders, labels and simple swipe gestures
✔ Offline mode: read, write and organize emails offline, and everything syncs when you're back online
✔ Private categories: keep important emails in focus with automatic, private categories
✔ Multiple accounts: switch between multiple Proton Mail accounts in one secure email app
✔ Get up to 1 GB of free email storage, or up to 15 GB with Mail Plus

🔒 Secure email with encryption
Everything in your inbox is stored with zero-access and end-to-end encryption, emails between Proton users can only be read by you and your recipient. Proton Mail can't read or scan your messages. Our open-source apps use OpenPGP encryption and are independently audited.

🎭 A private alternative to temp mail
Need a temp mail address for a sign-up? Create up to 10 free hide-my-email aliases on the web. They forward to your inbox, keep your real email address private, and can be disabled or deleted at any time.

🔄 Switch to secure email
Easy Switch moves your email to your new secure inbox with no manual exporting or importing. Connect Gmail to use your Gmail address alongside your Proton email in one secure inbox, or set up auto-forwarding from as many Gmail accounts as you like.

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

💜 How can Proton Mail be free?
We believe everyone deserves private email. Free accounts are funded by our community of paid subscribers. Upgrade for more email storage, more addresses and custom domains.

Follow Proton for the latest news and offers:
Facebook: /proton
X: @protonprivacy
Reddit: /protonmail
Instagram: /protonprivacy

Learn more: https://proton.me/mail
Our open-source code: https://github.com/ProtonMail
Secure & private email app. Encrypted inbox, spam filter and email aliases.
Updated on
Nov 10, 2026
Events & offers

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

93.3K reviews
Nathan Keys
October 1, 2022
Similar to many other users - the new app is rife with issues. Emails won't load, won't send, won't send notifications etc. And then sometimes it will. I have been a long time paid customer and want to continue to support this great company. However, the new issues have been going on for long enough that it's becoming very frustrating to the point of wanting to cancel the service.
77 people found this review helpful
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Proton AG
October 3, 2022
We apologize for the inconvenience. Please 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). If you need additional help, contact us at https://proton.me/support/contact to help you troubleshoot.
A Google user
February 26, 2020
Not too bad for free encrypted mail. My only issue is that I just tapped my drop-down to go into my app, as always...now there's a numerical code that I need to know for my app. I really hope this can be resolved soon as it's easier to tap a notification than going online and putting in all info for login. If you can fix that soon, I'll change it to a five star!!! Thank you, - Bob
26 people found this review helpful
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Proton AG
October 29, 2019
Hi, is there something we can do to get 5 stars? Please let us know at https://protonmail.com/support-form.
Marla Bretches
July 24, 2022
I have used Proton for 2 years with no issues. No more sadly. I have had various problems lately and it's not improving at all. Most recently, when updating my email and deleting emails, the same emails keep reappearing in my email over and over even though I keep deleting the messages!! Frustrating! Their help desk is not very helpful either. :(
67 people found this review helpful
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Proton AG
July 25, 2022
Apologies for the inconvenience. Please go to the app settings, clear the app cache and disable "Alternative routing" to see if that helps. If the issue persists, please contact us: https://proton.me/support/contact. Alternatively, try downloading the beta version of the app: https://proton.me/support/mobile-applications-ios-android-beta.

What’s new

Multiple fixes and performance improvements.