PCalc - The Best Calculator
iOS Universal Utilities
PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations.
Includes an Apple Watch app, so you can calculate on your wrist!
Added support for 3D Touch on the iPhone 6s and iPhone 6s Plus.
Added 3D Touch icon shortcuts for quick access to PCalc functionality.
Added a new "3D Touch" section to the settings to configure the shortcuts.
Press the display to peek at the tape, registers, or RPN stack.
Fixed a problem with the “Programming” layouts.
Fixed a problem with pasting into PCalc on iOS 7.
148Apps —PCalc RPN Calculator