Great Calc, especially for RPN

For those of us who prefer an RPN type calculator, this one has been one of the best. This app allows the user to see multiple stack levels which makes using it so much nicer. Very importantly, this calculator lets people have a choice of the old RPN or the updated RPL which it calls HP48 style RPN (RPL was an improvement over RPN when using visible multi stack levels). The customization is excellent so you have the functions you need readily available.
Also, thank you for listening and implementing customers comments. That is what has propelled this app to be the top general calc app available (especially with so many free calc apps and the Apple supplied one). People are still willing to pay for this one.

The emusifyer about PCalc, v3.5.3