‘Android TV’ is a new app released by Google on the App Store, with this app installed, your iPhone will be turned into a wireless remote that lets you control your Android TV through a D-pad or voice.
If you often trouble to find the damn remote control, then Android TV app is a good alternative, which allows you to control your Android TV with the directional pad or by gestures with the touchpad. You can also perform a voice search on the TV using the iPhone’s microphone, possibly a direct stab at Apple TV.
Not only that, if you want to play games with your friends on the same TV, then just install this app on each iPhone to control the Android TV simultaneously. But make sure that all devices and TV in the same WIFI network.