Simple Calculator. 对比 Essential Calculator 的使用情况和统计数据

Simple and easy-to-use calculator app for iPhone/ iPad. The calculator includes tax and business functions which is very useful for professionals and small business owners. FEATURES • 12 digits • Tax calculation • Percentage (%) • Cost/ selling price/ gross margin calculations • Memory operations • Grand total (GT) • Square root • +/- (Sign change) • Arithmetic constant calculation • Digit grouping and decimal mark as per device locale