Apple Mail vs Proton Mail

Apple Mail is the default email client included with macOS, iOS, and iPadOS that supports IMAP, POP, and Exchange email accounts. It provides features like smart mailboxes, VIP contacts, markup tools, and integration with other Apple apps. The application includes built-in privacy features like Mail Privacy Protection.

Proton Mail is End-to-end encrypted email service with web and mobile clients, based in Switzerland.. It is available under a freemium model. This tool falls under the email clients category.