This app allows you to log in to the "ETC Riyou Shoukai Service" site within the app, read records, and generate various PDF files. The feature is that you can see the days you used ETC in a calendar format. You can also display the period-month by setting the separator day of the month. Data is saved within the app so that you can view previous records. There is also a widget that allows you to view records. Initially, you can only view it a limited number of times, but once you purchase the feature, the restriction will be removed. There is also a sister app that has fewer functions but is cheaper, so please use it according to your preference. Data is shared with sister apps so you can continue using it.