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 an option for currencies to show four decimal places.
Added an option to turn off the digital crown in the watch app.
Added a new line display type which always shows the x register as a fraction.
Fixed a problem with the ticker tape being scrolled too much to the right on iOS 12.
Fixed a problem with the iOS app being stuck in scientific mode.
Fixed a problem setting the display background color for the "Dark Night" theme.
Fixed a problem with the watch app losing settings.