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MeronBlueMail
Free

Free and open source under the AGPL-3.0 licence.

 Freemium

The client is free to download. Some features are reserved for paid plans.

Windows, macOS, Linux, Android, iOS Windows, macOS, Linux, iOS
  • Kanban board view for organising mail
  • Chat-style threads in a unified inbox
  • One inbox covers many accounts across Windows, macOS, Linux, Android and iOS with a consistent interface and shared…
  • Conversation-style layout differs from traditional mail clients
  • Newer project with a smaller user base
  • It is closed source, some features need a paid plan, and its handling of account credentials has drawn…
Downloadable app Downloadable app
Open source Closed source
License: AGPL-3.0-or-later License not stated
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked September 22, 2026

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