-Calculations are done as you press the buttons.
-Swipe right on the buttons to get to the scientific expressions.
-Swipe right on the calculations to see your past calculations.
-Hold "clear" to delete your past calculations.
-No advertisements

Includes:
-addition, subtraction, division, multiplication
-sine, cosine, tangent
-logarithmic, natural log
-pi, e
-factorial
-exponents, square root
-history of past calculations
-option to have all buttons on one page or to split them into two pages