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Swinsian vs Cog: catalog facts
Swinsian	Cog
Paid Paid Mac app.	Free Free and open source, supported by donations.
macOS	macOS
Plays FLAC, Vorbis and WMA natively on macOS Batch tag editing with regex find and replace	Gapless playback and embedded CUE sheet support Plays a very broad range of formats, plus livestreams and HLS
macOS only Local library player without a streaming service	macOS only; the Windows and Linux version is still early Requires macOS 12 or later
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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