スクナ — 新時代の健康管理

◉ Sukuna
"Sukuna" is an app for managing your health condition and sharing data with other users.
Health data that can be measured with iPhone and Apple Watch is called PHR (Personal Health Record) and is expected to be used in the medical field. Sukuna can use this to help you manage your own health and share it with other users to help watch over the elderly and communicate in emergencies.
If you start Sukuna, you can see your activity status at a glance from the number of steps and distance traveled on that day measured by a pedometer. Days with a lot of activity are displayed in red, and days with less activity are displayed in blue. These data can also be exported in CSV format, which will be useful for users who want to manage their health condition in detail.
Sukuna was developed with the aim of managing health as much as possible, not fitness or diet that requires active efforts, nor medical care that requires medication or behavior change. See below for details on each function.

◯Blood oxygen saturation
Measures and displays oxygen saturation; requires Apple Watch Series 6 or later.
When wearing an Apple Watch, oxygen saturation is automatically measured without activating the Sukuna on the iPhone. The measured data can be checked on Sukuna. The data can also be exported in CSV format.
Oxygen saturation is measured and recorded using iOS HealthKit.
◯Measurement of hand washing frequency
Measures the number of hand washings, requiring an Apple Watch Series 4 or later. Apple Watch must be worn at the time of measurement.
The measured number of hand washings can be checked in the app or exported in CSV format. This function uses HealthKit of iOS.
◯Pedometer
The iPhone's sensor is used to measure the number of steps taken. It is not necessary to have the Sukuna running in order to take measurements.
The number of steps recorded can be checked in the app and exported in CSV format. This function uses HealthKit of iOS.
◯Measurement of walking and running distances
The iPhone's sensor is used to measure the distance traveled by walking and running. The app does not need to be running for the measurement.
Measured distances can be viewed within the app and exported in CSV format. This function uses HealthKit of iOS.
◯Number of Falls
The Apple Watch is used to detect falls. The app does not need to be running for the measurement. You can check the measured fall information on the "Visit locations and falls" screen in the app. This function uses HealthKit of iOS.
◯Location information
The iPhone's GPS is used to record the places you visit. The app does not need to be running for measurement. You can check the measured location information on the map in the app.

◉Required Devices
The following devices are required to use Sukuna's functions.
◯Distance and number of steps for walking and running
You can measure the data using only your iPhone.
◯Number of times you wash your hands
Series 4 or later Apple Watch is required.
◯Oxygen Saturation
Requires Apple Watch Series 6 or later.
◯Falls
Requires Series4 or later Apple Watch.
◯Location Information
It can be measured only with iPhone.

◉Paid features (In-App Purchase)
Users can measure, record, export and send health data to other users free of charge.
To view other user's data, you need to subscribe to a subscription. The subscription course varies depending on how many users' data you need to view.
○Sukuna Subscription (5 users)
You can receive health data for up to 5 users.
○Sukuna Subscription (10 users)
You can receive health data for up to 10 users.
○Sukuna Subscription (20 users)
You can receive health data for up to 20 users.
○Sukuna Subscription (50 users)
You can receive health data for up to 50 users.
○Sukuna Subscription (100 users)
You can receive health data for up to 100 users.