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Sleep Cycle vs Oura: catalog facts
Sleep Cycle	Oura
Freemium Free to download, with premium features offered through a subscription after a free trial.	Freemium The app is free to install, requires an Oura Ring, and offers a paid membership.
Android, iOS	Android, iOS
Sleep tracking with only a phone Smart alarm that wakes you in lighter sleep	Covers sleep, activity, stress, heart health and cycle tracking in one app Tracks over 50 health metrics from a ring rather than a wrist device
Main features are pushed toward a paid subscription Sound-based tracking is an estimate	Only useful with an Oura Ring, which must be bought separately Some features sit behind a paid membership
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.