Proton Mail: Encrypted Email

In-app purchases
96.2K reviews
Content rating
PEGI 3
10M+
Downloads
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

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
Oct 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

92.3K reviews
Luke Brenton
June 19, 2026
Overall a solid mail app. However, viewing emails can be painful. Scrolling is far from smooth for emails with many images and some emails that consist of just text seem to break - tiny text that you can't zoom in on without it breaking entirely in the process. Would also be nice to be able to edit filters on the mobile app!
14 people found this review helpful
Did you find this helpful?
Proton AG
June 22, 2026
We've added your +1 to the existing request for supporting editing custom filters on the app. As for the issues you've observed, please report them through the in-app 'Report a problem' option, so we can document your report accordingly.
A Google user
October 14, 2018
The current version of the app needs quite a lot of work to improve it. The inbox isn't very responsive, labelling and archiving emails doesn't always work, deleting multiple emails is a bit of a pain and the app menu animation isn't smooth - you then have to wait a couple of seconds before being able to select any of the options from the menu. All in all its sluggish and needs a lot more development.
14 people found this review helpful
Did you find this helpful?
Proton AG
October 16, 2018
Thank you for the feedback you have provided. We are looking closely at every report from our users so we could know what to focus on for our next update. You can also contact us via our support form for any additional feedback considering the app. https://protonmail.com/support-form
Gin
March 2, 2023
Couldn't find a way to reply to your reply so I'm having to erase my original review in order to respond to you. I done what you've said but this has not helped. And the notification that I receive it's just a general 'Fail to send'. Most times, the messages fail to get sent from the Drafts folder. Not sure if this is of any help. The message in process of being sent stays in the Drafts folder forever (and you're unable both to cancel the sending or review the email), only not to be sent.
16 people found this review helpful
Did you find this helpful?
Proton AG
March 9, 2023
This behavior was reported to our developers, and they are looking into the potential causes and solutions for it. In the meantime, when you compose a message try waiting a bit before hitting the send button to give time and make sure for the final changes of the draft to get saved before sending.

What’s new

Multiple fixes and performance improvements.