Reviews of Sleep Cycle: Sleep Tracker

By: Sleep Cycle AB App

List of user reviews and ratings for Sleep Cycle: Sleep Tracker

Total ratings

4.34 (Rating count: 216,965)

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Review summary

Users praise the app for solid sleep tracking and an effective smart alarm when accessible, and note its long-running reliability. However, widespread paywalls locking core features, intrusive ads, and occasional tracking inaccuracies drive dissatisfaction and uninstallations.

Pros

Good sleep tracking accuracy and a neat sleep tracker
Smart alarm can wake you up smoothly and effectively when the feature is accessible
Longstanding app with many users using it for years (over a decade)

Cons

Smart alarm and other core features are locked behind a paid subscription/paywall, causing dissatisfaction and uninstallations
Intrusive ads and notification ads, especially affecting free users
Inconsistent sleep tracking accuracy (misreads wake times or time to fall asleep)
Recent updates reduced free functionality (e.g., removing wake windows) leading to frustration

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User Reviews

Recent rating average: 2.70

All time rating average: 4.34

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39% (115)

Date	Author	Comment
2026-07-07	Le*****	require password that malfunctions
require password that malfunctions
2026-07-07	Br*****	says I was asleep when I wasn't. it can't tell the difference between lying in bed and breathing and actually sleeping. it can't possibly have heard me over fan noise. uninstalled and unsubscribed
says I was asleep when I wasn't. it can't tell the difference between lying in bed and breathing and actually sleeping. it can't possibly have heard me over fan noise. uninstalled and unsubscribed
2026-07-07	Ke*****	Recent issue is that most nights, the app shows me going in to deep sleep and staying there for the duration of my sleep. A straight line down, across, then straight back up in the morning. It didn't record any information including sounds on those nights, and my main purpose for the app is to listen to my sleeping. help!
Recent issue is that most nights, the app shows me going in to deep sleep and staying there for the duration of my sleep. A straight line down, across, then straight back up in the morning. It didn't record any information including sounds on those nights, and my main purpose for the app is to listen to my sleeping. help!
2026-07-06	Bi*****	Absolutely garbage! This app is a complete waste of money. I paid around ₹2000 expecting a proper sleep tracker, but it barely works. The tracking is inaccurate, features don't function properly, and it's full of bugs. It feels like all they care about is taking your money. Don't waste your hard-earned cash on this useless app. Save yourself the frustration and choose something else.
Absolutely garbage! This app is a complete waste of money. I paid around ₹2000 expecting a proper sleep tracker, but it barely works. The tracking is inaccurate, features don't function properly, and it's full of bugs. It feels like all they care about is taking your money. Don't waste your hard-earned cash on this useless app. Save yourself the frustration and choose something else.
2026-07-05	Wi*****	sleep cycle does not work sync to samsung health because health connect app do not work is stupid. sleep cycle app will Unscriptions.
sleep cycle does not work sync to samsung health because health connect app do not work is stupid. sleep cycle app will Unscriptions.
2026-07-03	fa*****	i haven't been able to use it. when i try to set an alarm, it says i have no network connection, which i do. but then again i live in iran maybe our internet connection isn't good enough? idk.
i haven't been able to use it. when i try to set an alarm, it says i have no network connection, which i do. but then again i live in iran maybe our internet connection isn't good enough? idk.
2026-07-03	Ch*****	Unauthorized charge of $45 for an annual subscription I never signed up for voluntarily. Google refusing to refund despite flagging it immediately within minutes of being notified of the charge. Be very careful with this app - sketchy stuff going on.
Unauthorized charge of $45 for an annual subscription I never signed up for voluntarily. Google refusing to refund despite flagging it immediately within minutes of being notified of the charge. Be very careful with this app - sketchy stuff going on.
2026-07-01	Ma*****	Worked amazing for years, now only goes off at the end of the window
Worked amazing for years, now only goes off at the end of the window
2026-06-30	Ta*****	Wonderful
Wonderful
2026-06-30	Sa*****	i am using it since 2017 more then 9 years, very good and effective the best sleep cycle, i love it
i am using it since 2017 more then 9 years, very good and effective the best sleep cycle, i love it