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SimpMusic vs Metrolist: catalog facts
SimpMusic	Metrolist
Free Free and open source under the GPL-3.0 licence.	Free Free and open source.
Android	Android
Ad-free background playback of YouTube Music Browse charts, podcasts and moods and genres	No ads during playback Offline caching of songs
Unofficial client that depends on YouTube Music data May break when YouTube changes its service	Android only Unofficial client that depends on YouTube Music continuing to work with it
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it 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.