■ main function - just automatically starts app holds up the card, and save it in the smartphone takes in the usage history. - can have more than one registration of the card, and use the name of the card, the icon, makes clean together and ride history. - a simple UI, the only in history a few taps can, such as e-mail sent in CSV format, you can easily re-use in such settlement of transportation expenses. Of data backup, you can, such as to easily share data between multiple mobile. ■ associat