EcoHome donation key (jp.gr.java_conf.hdak.certificate.home) on Google Play
This is not the application, only the donation key for EcoHome (version 1.4 or later).You must have installed the Free Main app.https://play.google.com/store/apps/details?id=jp.gr.java_conf.hdak.home.ecoThis key is enable all features of EcoHome.