In order to use the full potential of the HOME CONTROL App, every user must register at first connection. Only  the device information, favorites, settings and groups are saved within the cloud.
The main reason for this registration is the safety provided by this. No other user will have access to your luminaires. Also, registration takes less than 30 seconds. Once you are registered, you do not have to enter your username and password again when you open the App.
If you want to let persons have access to the luminaires,  (your spouse children or friends) they only need to log in with the user data created by you at first registration. Device information, favorites, settings and groups are automatically transferred through the cloud. Registration at initial connection therefore not only ensures safety, but also has very practical functions.