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Mail.comProton Mail
Freemium

Free accounts with ads; a premium tier is available.

 Freemium

Free accounts work in the mobile and web apps; the desktop apps are offered as a free…

Web, Browser extension Windows, macOS, Linux, Android, iOS, Web
  • Choice of 100+ address domains
  • Up to 10 addresses per account
  • End-to-end encrypted email by default
  • Apps for iOS, Android, macOS, Windows, Linux and the web
  • Free tier shows sponsored content
  • Proprietary hosted service
  • Only works with a Proton account
  • Desktop apps need a paid plan after the trial
Hosted service, Browser extension Downloadable app, Web application, Hosted service
Closed source Closed source
License not stated License not stated
Account needed Account needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.