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
• Easily manage your email with conversations
• 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 entire 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 for all your communications.
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 a Gmail-like 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 who met at MIT and 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
Our open-source code base: https://github.com/ProtonMail
EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula
Like that it has features built in that the stock mail app doesn’t have.
Developer Response
Thank you for using our service! We really appreciate your support.
More to be desired.
d8nnii
Considering I just paid for an annual subscription, I find this app lacking in modern features such as rich text formatting. Hello, it’s year 2025 and mobile devices are more than capable. Also when composing an email, I can’t simply select text, it just doesn’t work. Please pay some attention to basic features and not only on privacy. Still, appreciate that this app is coded in Swift.
Developer Response
Thank you for your review and feedback! We've passed it along to our team so it can be taken into future consideration. If you have any additional suggestions on what we can do to improve, contact us at: https://proton.me/support/contact .
Increase the number of paid/free email accounts for quick switching
Ecclesiastes7
Presently, it seems users can only simultaneously login to 3 email accounts for quick switching. If i want to login in to the 4th account, i would be forced to logout from one of the 3 email accounts. Would be great if this limit to quick switching can be increased. Thanks.
Developer Response
Thank you for your feedback - we'll share it with the team. We can only sustain our business through our community's choice to support us by subscribing to a paid plan, so with that in mind, some features are necessarily available only on our premium plans. This ensures that we are able to keep providing free privacy-first services to those who can't afford a subscription.
Very good email service
Hugo008834
Proton is a useful tool to reclaim our privacy.My only request would be for a way to change the size of the font in the email ( many are very small so having it displayed bigger would be a nice addition).Keep up the good work!!
Developer Response
Hi! Thank you for the review! We will share your suggestion with our team for future consideration.
7.9.3
- Fixed an issue where some messages were not visible in the message list
7.9.2
- Fixed an issue where users who were signed out could not sign back in due to a "User already signed in" error
- Fixed an issue where the calendar widget would fail to load for invites with non-standard timezone formats
7.9.1
- Fixed an issue causing a "Something went wrong" error when opening PDF attachments
7.9.0
Features:
- Liquid Glass UI update
- Contact group badge shown in contacts list
Fixes:
- Fixed an error when viewing app settings
- Fixed an issue faced when signing-in
- Fixed an issue with signing-ing with 2FA
- Fixed an issue related to syncing your messages
- Update error messages related to storage quote when sending a new message
- Fixed an issue related to copy-pasting multiple inline images in the composer
- Fixed an issue where tapping the unread filter multiple times could is to not have effect
- Fixed an issue where accounts with sub-users couldn't disable the mobile signature
- Fixed an issue where some specific types of emails would fail to load
- Fixed an issue where contacts with multiple emails would all be added to a contact group view
- Fixed an issue causing the message list to sometimes not load correctly
- Fixed a rare case that would allow you to tap send multiple times showing an error message
- Improved blocking of trackers that could be used in emails
Version 7.9.3
The developer, Proton AG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Diagnostics
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
