Compare software

MailMaestroInbox Zero
Freemium

Free to start with paid plans for more use and for teams.

 Freemium

Free to start, with paid and sales-led plans for more use.

Web, Browser extension Web
  • Works inside Outlook and Gmail rather than a separate app
  • Drafts replies and summarizes long threads
  • Automatic labelling and pre-drafted replies
  • Bulk unsubscribe and cold email blocking
  • Gmail support depends on the Chrome extension
  • Email content is processed by a cloud AI service
  • Supports Google and Microsoft accounts only
  • Mobile apps are not yet available
Hosted service, Browser extension Web application, Hosted service
Closed source Open source
License not stated License not stated
Not stated if an account is needed Account needed
Needs internet Needs internet

Checked October 1, 2026

Checked October 1, 2026

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