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Noice vs Drift: catalog facts
Noice	Drift
Freemium Free to try, with the site promoting a paid offering.	Free Free and open source, with no ads.
Android, Web	Android
Mix several sounds with separate volume controls Sleep timer and Chromecast support	Independent volume for each sound layer Sleep timer that fades audio out
Source repository not updated since August 2024 Web version is only a prototype	Android only Limited to the bundled sound library
Downloadable app, Web application	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
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.