A fine RPN calculator. – ND0 RPN Graphing Calculator Review

This is the nicest app I've found to date, perhaps partly for reasons of nostalgia. If you don't know RPN, learn about it first before scrapping this app. Folks clearly aren't rating this app according to its capability, but rather according to what they expect from a standard calculator. Thankfully,this isn't standard. Reminds me of my phenomenal 20-year-old HP. Kudos to the author! Great work here, and kindness for giving it away.
Review by CalebPM on ND0 RPN Graphing Calculator.