Compare software

Pillow vs Sleep Cycle: catalog facts
Pillow	Sleep Cycle
Freemium Free on the App Store with optional paid features.	Freemium Free to download, with premium features offered through a subscription after a free trial.
iOS	Android, iOS
Works on Apple Watch, iPhone and iPad Records sleep audio such as snoring	Sleep tracking with only a phone Smart alarm that wakes you in lighter sleep
Apple devices only Some features need payment	Main features are pushed toward a paid subscription Sound-based tracking is an estimate
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 September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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