Reliable and powerful

I have depended on PCalc as my primary calculator for OS X and IOS. With this being the first paid update that I recall seeing, I checked and see that I had originally purchased PCalc in 2006. Hard to believe that I have used it with no issues or even second thoughts for 8 years now. Now hesitation to pay for the new version after all this use. I have never once been tempted to even look at another calculator.

jdh2001 about PCalc, v4.0.1