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Optimus Player vs PYM Player: catalog facts
Optimus Player	PYM Player
Paid Commercial app; see the developer's website for current pricing.	Free Free, with optional donations via PayPal or bitcoin.
macOS	macOS
Plays 250+ formats via FFmpeg Color-accurate playback using macOS frameworks	Plays MKV, AVI, WMV, WebM and other formats via FFmpeg Automatic subtitle download from NapiProjekt
macOS only Closed source, unlike VLC or IINA	Website and subtitle source are aimed at Polish users macOS only, and a large download of about 260 MB
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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