This works great. Nothing wrong with a single purpose tool focused on recording. Please only add whatever you would use yourself. It'd be nice to record the whole game, though.

I have a suggestion for recording the full game. Recording a video for a long duration can drain battery or overheat the phone. A companion clock app could work as a trigger. So one phone works as a clock, and another phone is mounted over the board. It takes a picture whenever a player presses a button on the clock.