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N-Zik vs Harmony Music: catalog facts
N-Zik	Harmony Music
Free Free and open source under the GPL-3.0 licence.	Free Free to download and use.
Android	Windows, Linux, Android
Lyrics that can be synced, edited and translated Offline caching and permanent downloads	No login or Google account needed No ads while streaming
Described by its developer as a side project Depends on YouTube Music, which can break unofficial clients	Depends on YouTube Music, which can break unofficial clients Not available in the official Google Play store
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-only	License not stated
No account needed	No account needed
Works offline	Not stated if it 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.