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: 217,216)

Receive review notifications

Get notified when new reviews are posted so you can respond quickly.

See reviews on Google Play Store

View and respond to reviews directly on the store page.

Visit

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

Upgrade to see all 314 reviews

User Reviews

Recent rating average: 3.50

All time rating average: 4.34

Upgrade to see all 314 reviews

38% (120)

Date	Author	Comment
2026-07-31	Na*****	it is too bad.i download and it cut my bank balance doesn't buy premium and I send refund letter but I can't receive
it is too bad.i download and it cut my bank balance doesn't buy premium and I send refund letter but I can't receive
2026-07-30	Te*****	Very good to have a create conscious knowledge of your sleep quality. Just wish there was an auto-alarm setup. I often forget to set the alarm some nights!
Very good to have a create conscious knowledge of your sleep quality. Just wish there was an auto-alarm setup. I often forget to set the alarm some nights!
2026-07-30	Jo*****	I've been using this app for about 3 weeks, and all the nights since it says that I'm in deep sleep for about 4h and that suddenly straight after that I'm awake for most of the time before getting up, saying that I slept for 6h and in bed for 8h. It also says that it takes me 5 min to fall asleep on nights that I know it took me 30 min to do so. I haven't tried the premium and i don't intend to, the smart alarm is useful and it's free. I recommend the app but don't expect great sleep tracking.
I've been using this app for about 3 weeks, and all the nights since it says that I'm in deep sleep for about 4h and that suddenly straight after that I'm awake for most of the time before getting up, saying that I slept for 6h and in bed for 8h. It also says that it takes me 5 min to fall asleep on nights that I know it took me 30 min to do so. I haven't tried the premium and i don't intend to, the smart alarm is useful and it's free. I recommend the app but don't expect great sleep tracking.
2026-07-26	Ke*****	I used this app and when I was actually sleeping it seemed to work good up until last night. I forgot to stop the app when I got up earlier than the "alarm". I was up for several hours and even took a 15 min walk. the app said I slept for 6.5 hours when I was only asleep for maybe 4 of those hours and it was interrupted sleep. Doesn't work after all. 😢
I used this app and when I was actually sleeping it seemed to work good up until last night. I forgot to stop the app when I got up earlier than the "alarm". I was up for several hours and even took a 15 min walk. the app said I slept for 6.5 hours when I was only asleep for maybe 4 of those hours and it was interrupted sleep. Doesn't work after all. 😢
2026-07-24	Ju*****	Monitors my sleep & Smart wake up alarm are very informative and useful.
Monitors my sleep & Smart wake up alarm are very informative and useful.
2026-07-23	Hs*****	this app is what I'm looking for. last time I always used to wake up groggy but now with this app, I always wake up....REFRESHED😎
this app is what I'm looking for. last time I always used to wake up groggy but now with this app, I always wake up....REFRESHED😎
2026-07-19	Sa*****	I have been using the Sleep Cycle app, and it has completely transformed my sleep habits. The smart alarm clock functionality is incredible—it tracks my sleep patterns and gently wakes me up during my lightest sleep phase, making me feel refreshed in the morning. The detailed analysis and daily sleep graphs provide highly insightful data. It is user-friendly and effective. I highly recommend it to anyone looking to improve their rest and overall well-being. A truly amazing app!
I have been using the Sleep Cycle app, and it has completely transformed my sleep habits. The smart alarm clock functionality is incredible—it tracks my sleep patterns and gently wakes me up during my lightest sleep phase, making me feel refreshed in the morning. The detailed analysis and daily sleep graphs provide highly insightful data. It is user-friendly and effective. I highly recommend it to anyone looking to improve their rest and overall well-being. A truly amazing app!
2026-07-18	Ab*****	the best app ever sound tracking etc... I love it
the best app ever sound tracking etc... I love it
2026-07-17	Ha*****	this app is amazing it tracks sleep well. and tonight I used there alarm and I can't believe how good it is it woke me up feeling good and refreshed 10 out of 10
this app is amazing it tracks sleep well. and tonight I used there alarm and I can't believe how good it is it woke me up feeling good and refreshed 10 out of 10
2026-07-17	Er*****	unable to cancell plan. i have cancelled before but they keep stealing money. there is no way to cancell your subscription in the app or their website. Don't do it.
unable to cancell plan. i have cancelled before but they keep stealing money. there is no way to cancell your subscription in the app or their website. Don't do it.