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ACE Studio vs NEUTRINO: catalog facts
ACE Studio	NEUTRINO
Paid Commercial software; check the official site for current plans.	Free Free to download, with the project supported by crowdfunding and sponsors.
Windows, macOS	Windows
Generates sung vocals from melody and lyrics Combines voice generation with a vocal production workspace	Free singing voice synthesis Seventeen voice characters to choose from
Proprietary commercial software Little public detail on the site about plans and requirements	Official site is mostly in Japanese Web version is still in alpha testing
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	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 September 26, 2026	Official website Full listing and sources Checked October 2, 2026

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