Remote control app to function without need of internet connection

The remote control app is fab however could it function without the need of an internet connection...? We use a number of different venues so don't always have internet and using an iPhone to create a Hotspot seems a little unnecessary for a simple remote control app. Maybe add an option to connect via Bluetooth or to function on the same network but without internet that way you could create a private network on the Mac and just join the iPad to it. Thanks...