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Petrichor vs Swinsian: catalog facts
Petrichor	Swinsian
Free Free and open source.	Paid Paid Mac app.
macOS	macOS
Plays over 40 audio formats including FLAC and ALAC Browse by artist, composer, genre, decade or year	Plays FLAC, Vorbis and WMA natively on macOS Batch tag editing with regex find and replace
macOS only Requires macOS 14 or later	macOS only Local library player without a streaming service
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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