iPhone Screenshots


"JUKUSUI " can be used as the alarm clock that has the functions of Sleep Cycle Alarm and snoring check. Also, this app has a large selection of original Sleep sounds and Relax Melodies and these sound supports you fall asleep and wake up.

1:Snore recordings & tracking - Features as "Snore app" and "Snore control app"
You can check the hours of snoring against the hours in bed (Snoring Rate).With recording your snoring, you can see and check your snoring condition in various aspects.

2:JUKUSUI Premium Subscriptions
JUKUSUI Premium offers a 1-month free trial for first time subscribers. Here are the subscriber's benefits:
・Full access to Snore Log features.
・No ads.
・Unlimited use of Sleep sounds & Relax Melodies - use one of your favorite alarm and lull sounds
・Full access to display options for my data provided in jukusui.com.

3:New Monthly Report - Find out your own sleep cycle by "Sleep Cycle Alarm" & "Sleep App" features
The monthly reports will be provided in our website "JUKUSUI.COM".
You can open this website in the app. With our new indicator and new snore feature, you can analyze your sleep in various aspects.

4:Improved Sleep Log - sleep cycle & snoring check
We changed the First indicator of Sleep Log to "Sleep Efficiency".

JUKUSUI is a multi-functional alarm clock designed to support and improve your sleep. For people who have trouble falling asleep or waking up refreshed, it has a lot of amazing functions to improve their sleep habits.

◆Lull Sounds
The healing lull sound will be played to induce peaceful sleep. This is very good for people who suffer from insomnia, who have trouble falling asleep or who need to relax more in sleeping.

◆Smart Alarm
This is available for those who always wake up feeling tired, who turn off the alarm only to fall back to sleep or who have trouble waking up in the morning due to hypotension. This monitors body movements using accelerometer in your smartphone and activates the alarm when you're in light sleep.

◆Sleep Report
If you use this app every day, you can get your own report analyzing your sleep in various aspects. This report detects your sleep cycle and provide you with the tips to sleep better.

◆Cloud Service
This is the service to keep all of your Sleep Log on the dedicated server safely.
When you change your device, you can transfer the data from your old device to the new one. This is a free service.

◆Connect JUKUSUI to Health app
You can connect JUKUSUI to iOS Health app. By turning ON the connection and log your sleep by JUKUSUI, your bedtime and wake up time are automatically updated to the Health app.

・Wake-up task provides strong support for your awakening.
・Fade-In in the alarm sound wakes you up gently.

===="JUKUSUI Premium" Subscriptions ====
●Plans:"3,600JPY/yr." or "480JPY/mth." (Offers a 1-week free trial for first time subscribers.)
●The subscription fee will be charged to your Apple ID.
●Offer the free trial per Apple ID.
●The subscription fee will be charged within 24 hours before the end of the free trial. To cancel it during the free trial period, proceed with the procedure more than 24 hours before the trial ends.
●The monthly/annual subscription fee will be charged within 24 hours before the expiration date. You can cancel the updates more than 24 hours before the expiration date.
●The subscription fee is non-refundable even if there is a time period of use when canceling your subscription.
●For cancellation of the updates, you can do it with an Apple ID settings.

====Terms of Service & Privacy Policy====
Terms of Service : https://jukusui.com/en/terms
Privacy Policy : https://jukusui.com/en/privacy


What’s New

Version 4.6.11

Minor fix.


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App Privacy

The developer, 株式会社C2, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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