"You Will Never Need Another Calculator App Again With Calc Pro HD - 4.5/5 Stars - AppAdvice
Build your own Calculator!
Take advantage of the improved workflow in either Landscape or Portrait!
Customize Calc Pro HD Free by purchasing the calculators and features you need! Choose from up to 8 calcs to create the perfect all in one calculator!
Calc Pro HD Free comes with the Standard and Scientific calculators found in the full version.