« Roaming Trek|
RPN Calculator 48 is a polished RPN replacement for Apple's built-in calculator:
The ergonomics (screen and keyboard layout) of RPN Calc. 48 were inspired by HP's outstanding 48-series calculator.
RPN Calc. 48 is made by the developer of tChess (the critically acclaimed iPhone chess game) and Learn Chess (the Apple Staff Favorite e-book).