As far as I know, those things run on a schedule most of the time but maybe you want to leave early and turn off all the lights at once. Or if you want to pull

As far as I know, those things run on a schedule most of the time but maybe you want to leave early and turn off all the lights at once. Or if you want to pull an all nighter and want normal light so you don't get sleepy quicker. There are a lot of cases when you want to change your schedule and your phone helps you do that. Furthermore, you will be controlling the lights less with an app and more with your voice. For instance, if you tell Siri good night (and you have home kit enabled), Siri should dim or turn of the lights. Combined with Amazon's Echo, this can really be handy (although I have a lot of privacy concerns regarding Echo).