價格：免費
更新日期：2019-02-16
檔案大小：12 MB
目前版本：1.03
版本需求：需要 iOS 11.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
In life and business it pays to be the guy who sees things first. If you're working with money or data that's going to mean being able to figure rapidly. This trainer app will help you do that by throwing arithmetic problems at you fast and furious and rating you on your estimations. When you think you're good enough run the test and see how you compare to your peers via the GameKit leaderboard.
支援平台：iPhone