Airmail vs Proton Mail

Airmail is an email client for macOS, iOS, and watchOS designed for power users who manage multiple email accounts. It supports Gmail, iCloud, Exchange, IMAP, and other providers with features like custom actions, snooze, send later, and integration with third-party productivity apps. The app uses a subscription model for premium features.

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.