ApkDownload

Proton Mail: Encrypted Email APK

Latest Version 4.9.1 for Windows
Updated 2025-04-11

App information

Version 4.9.1 (#11362)

Updated 2025-04-11

APK Size 83.6 MB

Requires Android Android 9+ (Pie)

Offered by Proton AG

Category Free Communication App

App id ch.protonmail.android

Developer's notes A trusted email app that uses end-to-end encryption and offers advanced security

Screenshot

Click on the image to see full size

Latest updates

What's new in Proton Mail: Encrypted Email 4.9.1

- Toolbar actions in the Mailbox and Details screen can now be customized
- Additional Swipe Actions are now available
- Fixed an issue where free users with an additional @proton.me address were unable to change sender in Composer
- Fixed an issue where a conversation message sometimes wouldn’t get expanded when offline
- Minor fixes and improvements

Editor's review

Download the latest Proton Mail: Encrypted Email application, version 4.9.1, compatible with Windows 10/11 (using emulators such as Bluestacks), Android devices. This free Communication app is developed by Proton AG and is easy to download and install.

Previous versions, including 4.9.1, 4.8.1, 4.7.2, 4.6.0, 4.5.0, are also available. If you need help or have any problems, please let us know.

Description

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
• 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 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

App permissions

Proton Mail: Encrypted Email 4.9.1 APK requires following permissions:

Allows applications to open network sockets.

Allows an application to write to external storage.

Allows an application to read the user's contacts data.

Allows an app to use fingerprint hardware.

Allows applications to access information about networks.

Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.

Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.

Allows an application to read from external storage.

Ratings and Reviews

Rating: 4.5/5 based on 73K+ reviews

(*) is required

1 ★ Registered and my account is flagged as spam (automated abuse detection). I added email recovery, but the restrictions never lifted. Don't waste time with this email service.

4 ★ You can't embed images or photos in the message. So, it's pretty good, but there's room for improvement. Choosing to include an image as an attachment or embed inline in the message is currently available on the web app, and I believe in Appel's iOS app. Discriminating against Android users in this way is not cool, and I assume possibly a deal-breker for some if not many. I'm sure we'd all be thrilled to have this feature. This is a kind appeal to developers--would you please?

4 ★ the only problem i have with this app is the inability to side swipe to go to the previous/next email. other than that... proton as a whole is excellent!

1 ★ Deserves no stars Counterintuitive garbage-app that fights the user at every turn. Changing recovery email addresses shouldn't be impossible.

5 ★ An acceptably easy transition from Gmail. Thank you Proton Mail, for keeping our sensitive information sacred, and giving us an alternative to the giants! And the free VPN is icing on the cake. A+

Previous versions

Proton Mail: Encrypted Email 4.9.1 APK for Windows (#11362, 83.6 MB)

Proton Mail: Encrypted Email 4.8.1 APK for Windows (#11229, 83.4 MB)

Proton Mail: Encrypted Email 4.7.2 APK for Windows (#11059, 83.1 MB)

Proton Mail: Encrypted Email 4.6.0 APK for Windows (#10813, 81.6 MB)

Proton Mail: Encrypted Email 4.5.0 APK for Windows (#10674, 81.6 MB)