iKnowTennis! by Wild Creek , Barbara Wyatt App Developer - Android App Featured Review
Knowing the rules of tennis is quite a bit more complicated than it seems. To REALLY know the rules you have to know a bit more than just to hit the ball with the racket at the right time and at the right direction. There are rules about ball falling, rallies, points to be earned at various positions and more.
iKnowTennis! is the app everyone needs to really know and understand the various rules and etiquette of tennis. Small, fast and very well designed, this app can make anyone a tennis rules master.
The app has a repository of rules everyone can browse and learn but the funnest and most memorable way is through various types of quiz where the user of the app must answer questions about Tennis rules, divided into subjects if desired.