Nowadays, many people like playing games on an app. It is convenient and easy to use mobile phone playing games. Compared with PC gaming, people can play games everywhere such as bus stations, train, restaurant. They can also use a mobile phone at any times, and individuals think it is a good way to play on the waiting time. From recent approach, many famous games start their app now such as Hearthstone, Minecraft because they think the app can catch more audiences. Based on the new technology, the new trend of games will come to replace the old one. Even though many professional players think PC gaming cannot be replaced, the app games are more popular now.