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N-Zik vs OuterTune: catalog facts
N-Zik	OuterTune
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Lyrics that can be synced, edited and translated Offline caching and permanent downloads	Local files and YouTube Music in one player Song downloads for offline playback
Described by its developer as a side project Depends on YouTube Music, which can break unofficial clients	Unofficial YouTube Music client that can break when the service 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	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.