This is an app for start signal that can be used for mini 4WD and R/C racing. Just press the start button to use it, and you can change the color of the circles to your liking. If you don't want to pay for a starting signal just to play, please give it a try.
Sports · iPhone, iPad, Android · Free
Rating: 5.0 out of 5, based on 2 user ratings.
