Proton Mail - Encrypted Email 4+

Fast, private & secure mail

Proton AG

    • 4.6 • 147 Ratings
    • Free
    • Offers In-App Purchases



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 or 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

For more information, visit:
Our open-source code base:

What’s New

Version 4.0.6

New in this version:
- [Improvement] The 'Undo send' banner will be automatically dismissed when it's no longer required.
- [Improvement] Trashing or moving a message from within message details will now exit the message.
- [Bug fix] Trying to trash a conversation containing trashed messages would result in a crash.
- [Bug fix] Wrong number of attachments displayed in messages containing attachments and embedded images.
- [Bug fix] When printing an email, the margins of the first page are incorrect.
- [Bug fix] The "history" button was sometimes displayed on messages without a history.
- Multiple other minor bug fixes.

Ratings and Reviews

4.6 out of 5
147 Ratings

147 Ratings

Usuário ProtonMail ,

Parabéns à equipe ProtonMail!

É com satisfação que deixo este parecer – lúcido e seguro – sobre os serviços prestadia pelo ProtonMail.
Desde a versatilidade, passando pela ergonomia, até a segurança, o que faz da ferramenta a mais aceita até então.

Com uma estrutura alicerçada no profissionalismo e na segurança dos dados, o ProtonMail veio suprir as necessidades daqueles que pensam na salvaguarda de suas informações, indo ao encontro da tecnologia da informação, cuja usabilidade requer alta performance na inviolabilidade de mensagens.

Seu recurso criptográfico, além de outras ferramentas inexistentes em outras plataformas, fazem do ProtonMail um recurso digital diferenciado, o que nos leva a pensar que nossos e-mails estão protegidos.

Tudo isso faz com que o ProtonMail seja modelo a ser seguido em favor da segurança da informação. Continuem, portanto, aperfeiçoando a plataforma e oferendo também mais recursos.


Usuário ProtonMail

CaptainKhozz ,

The best

The best. Just needs dark mode to get even better!

Developer Response ,

Thank you for your rating! Dark mode is planned and will be available in the future.

Fwinter ,


The app is great. I miss iWatch support though.

Developer Response ,

Hi! Thank you for your feedback. Your support is greatly appreciated.

App Privacy

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 on, for example, the features you use or your age. Learn More


  • Wallet

    Get all of your passes, tickets, cards, and more in one place.

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