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Chroma Doze vs Noice: catalog facts
Chroma Doze	Noice
Free Free and open source under the GPL-3.0 licence.	Freemium Free to try, with the site promoting a paid offering.
Android	Android, Web
Draw any noise spectrum by hand Fast feedback while adjusting	Mix several sounds with separate volume controls Sleep timer and Chromecast support
Android only Infrequent updates	Source repository not updated since August 2024 Web version is only a prototype
Downloadable app	Downloadable app, Web application
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0
No account needed	Not stated if an account is needed
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 October 2, 2026

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