CalcBuddy Calculator is a scientific calculator app available on iOS, Android and Window Phone. It let's you see the whole mathematical expression, and gives you the answer as you type. CalcBuddy Calculator contains 15 mathematical functions and 30 scientific constants to make calculations easier.
Other features include a wide selection of color themes, being able stepping back through your calculation history, and to view the answer as a fraction or factorized into prime numbers.CalcBuddy Calculator has been around since 2010, and in total it has hundreds of thousands of downloads across the different platforms.
Download it here for free for you phone or tablet!