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Snapcast vs Airfoil: catalog facts
Snapcast	Airfoil
Free Free to use, with source code published on GitHub.	Paid Paid app from Rogue Amoeba, with a free download to try before purchase.
Linux, Self-hosted, Command line	macOS
Clients play in sync across rooms Separate server, client and control components	Sends audio from any Mac app, not only apps with built-in casting Plays to several speakers of different types in sync
Requires setting up a server and clients on each playback device More technical to configure than consumer multiroom speakers	The sending app runs on macOS only Paid software
Downloadable app, Self-hosted	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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