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RPN Calculator 48

RPN Calculator 48 is a polished RPN replacement for Apple's built-in calculator:
  • Starts quickly
  • Large buttons
  • Easy-to-read display
  • Same scientific functionality as Apple's calculator
  • 100 entry stack (4 to 7 visible)
  • 6 memory buttons (A-F)
  • 50+ levels of undo/redo
  • Saves state on exit
Use swipe gestures to undo/redo operations!!

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).

© 2019 Tom Kerrigan roamingtrek@gmail.com