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N-Zik vs OpenTune: catalog facts
N-Zik	OpenTune
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0-or-later licence.
Android	Android
Lyrics that can be synced, edited and translated Offline caching and permanent downloads	Ad-free and background playback Offline downloads and synchronized lyrics
Described by its developer as a side project Depends on YouTube Music, which can break unofficial clients	Unofficial client that depends on YouTube Music and can break when it changes Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-or-later
No account needed	No account 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.