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Slashy vs Superhuman Mail: catalog facts
Slashy	Superhuman Mail
Freemium Pricing is not listed on the homepage; a sales demo can be booked.	Paid Paid subscription; see the site for current plans.
macOS, iOS	Web
Drafts replies in the user's own voice Handles meeting scheduling and follow-ups	Keyboard-driven workflow for fast inbox processing Works with existing Gmail and Outlook accounts
Built around Gmail rather than any mail provider Pricing is not clearly stated on the site	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 October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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