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GMX MailProton Mail
Free

Free, supported by advertising and sponsored content.

 Freemium

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

Web Windows, macOS, Linux, Android, iOS, Web
  • Up to 10 addresses on one free account
  • Mail collector for other email accounts
  • End-to-end encrypted email by default
  • Apps for iOS, Android, macOS, Windows, Linux and the web
  • Web portal shows sponsored news and ads
  • Hosted service, so you rely on the provider for your mail
  • Only works with a Proton account
  • Desktop apps need a paid plan after the trial
Web application, Hosted service 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.