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Endel vs Pzizz: catalog facts
Endel	Pzizz
Paid Offered with a trial; see the site for current subscription prices.	Freemium A free version is available, with a paid full version.
Windows, Android, iOS	Android
Sound adapts to time, weather, heart rate and location Separate modes for focus, relaxation, sleep and activity	Separate modes for night sleep and short naps Combines soundscapes with voice cues
Effectiveness claims come largely from the company's own research Closed source commercial service	Full features need a purchase Not a sleep tracker; it does not measure sleep
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	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.