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Kiwi for Gmail vs Superhuman Mail: catalog facts
Kiwi for Gmail	Superhuman Mail
Paid Paid after a free trial, and can be cancelled at any time.	Paid Paid subscription; see the site for current plans.
Windows, macOS	Web
Gmail and Google Workspace in dedicated desktop windows Quick access to Docs, Sheets, Slides and Drive	Keyboard-driven workflow for fast inbox processing Works with existing Gmail and Outlook accounts
Only works with Gmail and Google Workspace Paid after the trial	Only supports Gmail and Outlook accounts Paid product, bundled into a wider suite
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
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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