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Sleep as Android vs Sleep Cycle: catalog facts
Sleep as Android	Sleep Cycle
Freemium Free to try, with paid features unlocked by purchase.	Freemium Free to download, with premium features offered through a subscription after a free trial.
Android	Android, iOS
Smart alarm based on sleep phase tracking Works with phone sensors or wearables	Sleep tracking with only a phone Smart alarm that wakes you in lighter sleep
Android only Large feature set can take time to configure	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.