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Noice vs Pzizz: catalog facts
Noice	Pzizz
Freemium Free to try, with the site promoting a paid offering.	Freemium A free version is available, with a paid full version.
Android, Web	Android
Mix several sounds with separate volume controls Sleep timer and Chromecast support	Separate modes for night sleep and short naps Combines soundscapes with voice cues
Source repository not updated since August 2024 Web version is only a prototype	Full features need a purchase Not a sleep tracker; it does not measure sleep
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.