CalcSupreme, an RPN calculator emulation and much much more, encompasses a wide range of fundamental and sophisticated basic, financial/business, math/science/engineering, and logic operations, accessible respectively via four different screens.

Basic operations include arithmetic, algebraic functions, data manipulations, numeric formatting, and menu selections. Financial/business includes loan/savings, cash-flow, bond, discount, markup, depreciation, calendar, and miscellaneous calculations.

Math/science/engineering includes log/exponential, trigonometric, hyperbolic, and user-designed functions. Also provided are matrix operations, coordinate conversions, curve-fitting, plotting (linear and log), integration, differentiation, time, calendar, probability, and statistics.

User can switch between simple variables and complex variables, where applicable. Logic operations include Boolean arithmetic in three principal number systems.