TableTennisScoreBoard. app for iPhone and iPad

This app is Table Tennis score board.
It automatically display score ,games, service side and change court by rule.
The following is how to use it.

You click a score board , then score is counted up.
You click the button in lower end both sides, then score is counted down.
Racket mark indicates service side.It automatically change sides every 2 points. You click a racket , you change service side compulsory.
The court automatically change every game.
The game count is automatically counted up.You click minus-button below game count indicator, the game count is counted down.