Ratings & Reviews performance provides an overview of what users think of your app. Here are the key metrics to help you identify how your app is rated by users and how successful is your review management strategy.
简单易用的钢琴 简洁漂亮的画面,钢琴谱 多首简单的歌曲，易于识别的简谱 耳熟能祥的儿歌,好玩的钢琴游戏,让宝宝有个快乐的童年
