Compare software

Inbox When ReadySaneBox
Freemium

Free to install, with a paid PRO upgrade and team plans.

 Paid

Paid subscription with a free trial that needs no credit card.

Browser extension Web
  • Lets you search and compose without seeing new mail
  • Available for Chrome, Firefox and Edge
  • Works with any email client and provider
  • Nothing to install
  • Works only with Gmail
  • Some features require the paid PRO upgrade
  • Requires giving a third-party service access to your mailbox
  • Ongoing subscription after the trial
Browser extension Hosted service
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Account needed
Not stated if it works offline Needs internet

Checked October 2, 2026

Checked October 1, 2026

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