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Voxengo SPAN vs Youlean Loudness Meter: catalog facts
Voxengo SPAN	Youlean Loudness Meter
Free Available without a software purchase.	Freemium Free version available, with a paid Pro version.
Windows, macOS	Windows, macOS
Shows frequency spectra and signal statistics Includes correlation and loudness metering	Measures LUFS, LKFS, LRA and PLR Works as a standalone app and as a plugin in most DAWs
Requires a compatible plug-in host.	Some features need the paid Pro version No Linux version
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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