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WACUP vs fooyin: catalog facts
WACUP	fooyin
Free Free to download, with optional support through Patreon, PayPal or Ko-fi.	Free The open-source application is available without a license fee.
Windows	Windows, Linux
Compatible with plug-ins for classic Winamp-era players Plug-in based design that can be tailored to taste	Flexible layouts and an extensible plugin system
Still a preview build rather than a final release Plug-in SDK for new plug-ins not yet available	Audio CD playback and ripping are Linux-only.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
No account 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 22, 2026

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