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Calyx vs Supaterm: catalog facts
Calyx	Supaterm
Free Free and open source under the MIT licence.	Freemium Free trial limited to five open tabs; a personal license is $99 once with a year of…
macOS	macOS, Command line
Built on the Ghostty terminal core Designed for supervising several coding agents	Native macOS terminal using libghostty Spaces, tabs and panes for organizing sessions
macOS only No tagged GitHub releases	Requires macOS Tahoe Trial is limited to five open tabs
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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