The concept of this app is self-explanatory, so they don't provide any info. The first moment shows three main screens and then zooms in on one, taking us through a simple prototype. Simple animations are added throughout the app that add visual interest without going overboard. When you click, the screen pulses a bit. This is helpful in understanding. The slider moving on the lightbulb screen is a nice touch. Overall, they kept it simple, and it worked. All they had to do was show you the prototype in action.