该应用程序是体重指数计算器。
This app is designed to check body mass index. Your weight should be in proportion to your height. With the help of this app, you will know whether your weight is high or low according to your height.If you weigh more or less than the normal range, you can take the necessary care. This means that if it is low, you can gain weight and if it is high, you can lose weight.