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Noice vs Endel: catalog facts
Noice	Endel
Freemium Free to try, with the site promoting a paid offering.	Paid Offered with a trial; see the site for current subscription prices.
Android, Web	Windows, Android, iOS
Mix several sounds with separate volume controls Sleep timer and Chromecast support	Sound adapts to time, weather, heart rate and location Separate modes for focus, relaxation, sleep and activity
Source repository not updated since August 2024 Web version is only a prototype	Effectiveness claims come largely from the company's own research Closed source commercial service
Downloadable app, Web application	Downloadable app
Open source	Closed source
License: GPL-3.0	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 October 2, 2026

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