SpicyRPN

SpicyRPN is an RPN calculator with a large suite of scientific and financial functions. It's a universal app with all of the functions available in all orientations for both iPhone and iPad. The app adjusts its layout to take advantage of the space available for the device.
What makes this calculator implementation unusual:
* 38 digits internal precision, for improved precision on long calculations
* adaptive digits display takes maximum benefit of the devices’s screen
* 5 Position RPN stack, for that little bit of extra headroom
* advanced scientific & business Functions, including some rare ones
* sliding button panels so all functions are available even on smaller devices.
Supports all iOS 9.0 and later devices, all orientations. This is a universal app for any iOS device. See our tutorial for RPN at https://spicybullfrog.com.