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Amethyst vs AeroSpace: catalog facts
Amethyst	AeroSpace
Free The open-source application is available without a license fee.	Free Free and open source.
macOS	macOS
Tiling layouts with keyboard navigation	i3-style tiling on macOS Keyboard-driven control
Requires macOS accessibility permissions.	Tiling workflow takes time to learn macOS only
Downloadable app	Downloadable app
Open source	Open 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 September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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