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DisrootProton Mail
Free

Free and donation-funded; extra email and cloud storage can be bought.

 Freemium

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

Android, Web Windows, macOS, Linux, Android, iOS, Web
  • Email, cloud, chat and more under one account
  • Works with standard IMAP clients
  • End-to-end encrypted email by default
  • Apps for iOS, Android, macOS, Windows, Linux and the web
  • Depends on donations and a small team
  • Custom domains only for regular supporters
  • Only works with a Proton account
  • Desktop apps need a paid plan after the trial
Downloadable app, 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 23, 2026

Checked September 23, 2026

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