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iVolume vs beaTunes: catalog facts
iVolume	beaTunes
Paid Paid license, sold directly and on the Mac App Store.	Paid Commercial application; trial available.
Windows, macOS	Windows, macOS
Uses Replay Gain to estimate perceived loudness Works with Apple Music and iTunes libraries on Mac and Windows	Analyzes tempo, key, loudness and fingerprints Finds tag inconsistencies and acoustic duplicates
Tied to Apple Music or iTunes libraries Paid software	Paid commercial license Windows and macOS only
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
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.