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!
Improved support for iOS 10 and watchOS 3.
Added support for haptic feedback on the iPhone 7 and 7 Plus.
Added an option to display improper fractions in "Fraction" display mode.
Round function now always rounds half upwards to the nearest integer.
Fixed a problem with the widget not loading on an iPhone 7 Plus.
Fixed a problem pasting in fractions of the form "2 3/4".
148Apps —PCalc RPN Calculator