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QLab vs ossia score: catalog facts
QLab	ossia score
Freemium Free to download; advanced features require a paid licence.	Free Free and open source.
macOS	Windows, macOS, Linux
Sound, video, lighting and show control in one cue list Object audio for spatial sound	Supports OSC, MIDI, DMX, MQTT, CoAP, BLE and serial Visual branching and condition-triggered scores
macOS only Advanced features need a paid licence	Specialized tool with a learning curve for newcomers Built for interactive art and shows rather than ordinary music production
Downloadable app	Downloadable app
Closed source	Open 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 1, 2026	Official website Full listing and sources Checked October 2, 2026

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