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Kaku vs Otty: catalog facts
Kaku	Otty
Free Free to download; source code is published on GitHub.	Freemium Free to download; see the pricing page in the documentation for current terms.
macOS	macOS
Works out of the box with no configuration required Tuned for AI coding workflows in the terminal	Native macOS app for Apple Silicon and Intel Session list covering agents, SSH and branches
macOS only Younger project with less shared documentation	Mac only for now; other platforms are on a waitlist Young product with little published detail on pricing
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account 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 1, 2026

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