Dakoku

This is an app that allows you to manage your attendance and attendance by simply holding your NFC card over your smartphone. As long as your smartphone is equipped with Suica, you will be fine. NFC cards, Suica cards, and nanaco cards can also be used. To use it, first register your NFC card in the app. Then, you can register your attendance and departure by simply reading the registered card with your smartphone. Also, if you are on the same WIFI, you can check the current attendance status by simply accessing the IP address of your smartphone. The IP address is displayed on the first screen and can also be viewed by clicking on it.