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Moises vs StemRoller: catalog facts
Moises	StemRoller
Freemium Free to start, with paid features.	Free Free, released under your choice of the Unlicense or MIT No Attribution.
Android, iOS, Web	Windows, macOS
Separates many stem types from any song Available on web, desktop and mobile	One-click stem separation using Demucs Built-in YouTube search to find songs
Processing runs on a hosted service Proprietary with paid tiers	Linux is not officially supported Splitting a song takes several minutes
Downloadable app, Web application, Hosted service	Downloadable app
Closed source	Open source
License not stated	License: Unlicense OR MIT-0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.