價格：免費
檔案大小：155.8 MB
版本需求：系統需求：iOS 9.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
If you want to be good at calculating, this app is for you.
The fun thing is that you can use your hand gesture to draw the number with high accuracy.
Let's begin your journey to become the expert in math calculation.
支援平台：iPhone, iPad