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

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