Sam Yu

xQuestions能让你自己设计、回答及分享你的题目，你可以在Excel电子表格里建立自己的选择题和填空题，然后导入到你的iPhone/iPad/iPodTouch里，接下来就可以随时用你的手机或平板电脑答题了，经过反复答题训练可以有效地提高你的记忆和理解能力。 xQuestions也是一款学习工 …

新增四级词汇、SAT词汇、GRE词汇、小学英语词汇、交规全国通用题库、EFL英语测试、数学测试（英文版）。 xQuestions能让你自己设计、回答及分享你的题目，你可以在Excel电子表格里建立自己的选择题和填空题，然后导入到你的iPhone/iPad/iPodTouch里，接下来就可以随时用你的 …

ExcelContacts is not only the best way to transfer contacts to and from your iPhone without iTunes---it's the only way! No other app lets you so easil …

ExcelContacts is not only the best way to transfer contacts to and from your iPhone without iTunes---it's the only way! No other app lets you so easil …

iFxCalc is a very delicate calculator that will greatly increase your calculation effectiveness. In addition to traditional calculator's computing fea …

Calculator 8 is a very delicate calculator that will greatly increase your calculation effectiveness. In addition to traditional calculator's computin …

An absolutely easy, intuitive and useful calculator app. If you are tired of entering the same calculation expressions over and over, if you want to g …

An absolutely easy, intuitive and useful calculator app. If you are tired of entering the same calculation expressions over and over, if you want to g …

xCal is designed for you to build calculators depending on your requirements. Customize parameters and formulas in an Excel spreadsheet in advance, im …

With All-in-1 List, you can build all kinds of lists depending on your own particular needs. Whatever kind of list you think you might need, such as T …