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Otty vs Calyx: catalog facts
Otty	Calyx
Freemium Free to download; see the pricing page in the documentation for current terms.	Free Free and open source under the MIT licence.
macOS	macOS
Native macOS app for Apple Silicon and Intel Session list covering agents, SSH and branches	Built on the Ghostty terminal core Designed for supervising several coding agents
Mac only for now; other platforms are on a waitlist Young product with little published detail on pricing	macOS only No tagged GitHub releases
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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