Proton Mail: Encrypted Email

What it does

Proton Mail is an email app for sending, receiving and organising messages, with encryption as a central part of the service. It is aimed at people who want more control over email privacy without having to manage encryption tools separately. Proton Mail can protect messages between Proton users; messages to people using other email services may not receive the same automatic end-to-end protection.

Who it suits

It is a practical fit for anyone choosing an email provider partly on privacy grounds, including people who want to keep personal correspondence separate from a large mainstream account. It still covers ordinary inbox tasks, so it can serve as a primary email app rather than only a specialist tool. The trade-off is that the privacy benefit depends in part on who you are writing to and which service they use.

What to expect

Proton Mail is developed by Proton AG and sits in the Communication category. Its Android listing has a 4.26 rating from about 83,000 ratings and more than 10 million installs, indicating use well beyond a small privacy-focused audience. As with any email app, it needs network access to sync messages and notifications; encryption does not remove the usual need to trust the account provider with service availability and account handling.

How it compares

Against Gmail or Outlook, Proton Mail’s main distinction is its emphasis on encrypted email, rather than simply offering another interface for a familiar mailbox. That makes it more relevant to users prioritising privacy than to people seeking the broadest integration with other services. It is best assessed as an alternative email service with everyday inbox functions and a more privacy-oriented approach—not as a guarantee that every message, recipient or part of email use is private.