Even if you don't bother to start the app, the widget will display the prediction of the onset of headache in the set area.
The prediction of the onset is calculated based on the fluctuation information of the atmospheric pressure from the previous day and the previous week.
If you want to check the headache predictions nationwide, display the headache predictions nationwide on a map from the widget icon.
If you set the region and estimated time in the widget settings, the widget will display the headache prediction as an icon.
The headache prediction map shows daily predictions instead of hourly predictions.