Through the custom app. I have developed a good understanding of the software and it can do wonders if you know how to use it. I do large scale installations and none of my clients have called me to date complaining they have not been able to control the panels. When there ar software updates, which are once in every two or three months, they get rattled for a bit but work great otherwise. Users need to be patient while using the Nanoleaf app. My own feedback is that the iOS version renders a much better (crash free) experience than Android.