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IINA vs Optimus Player: catalog facts
IINA	Optimus Player
Free Free and open source under the GPL 3.0.	Paid Commercial app; see the developer's website for current pricing.
macOS	macOS
mpv decoding with a genuinely native macOS interface Picture-in-picture, gestures, Touch Bar and a standalone music mode	Plays 250+ formats via FFmpeg Color-accurate playback using macOS frameworks
macOS 11 or newer only Nightly builds exist but the project warns they may be unusable	macOS only Closed source, unlike VLC or IINA
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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