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Ambio vs Noice: catalog facts
Ambio	Noice
Free Free and open source under the MIT licence.	Freemium Free to try, with the site promoting a paid offering.
Android	Android, Web
Mix up to three ambient sounds with separate volume levels Pomodoro presets built in	Mix several sounds with separate volume controls Sleep timer and Chromecast support
Android only Sound library limited to twelve sounds	Source repository not updated since August 2024 Web version is only a prototype
Downloadable app	Downloadable app, Web application
Open source	Open source
License: MIT	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.