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StartMail vs Proton Mail: catalog facts
StartMailProton Mail
Paid

Paid subscription with a 7-day free trial.

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
  • Unlimited disposable aliases
  • Encrypted mail to recipients without encryption via a password
  • End-to-end encrypted email by default
  • Apps for iOS, Android, macOS, Windows, Linux and the web
  • No free tier beyond the trial
  • Hosted service only
  • 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 23, 2026

Checked September 23, 2026

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