ナスカダッシュ

It is an application dedicated to IoT button of Nazka Dash.
E-mail is sent to the e-mail address registered in advance on the service server. By eliminating the trouble of sending e-mail, it is possible to use it as ordering button, notification button, watching button and so on.
https://www.from.co.jp/service/service_mail.html
※ It is application to use together with IoT button. The app alone does not work.