This is the RPN calc app you want – RPN Calculator 48 Review

The only calculator I used throughout seven years of higher education was my HP48Gx. I cannot use an infix calculator now, and I miss the stack on simple RPN calcs. I’ve used just about every HP48Gx emulator for iPhone that’s come out. They all spend too much time trying to emulate a handheld calculator. This app leaves the past in the past and brings a usable RPN calculator with a stack to your phone. This is the app you want.
Review by stucky1925 on RPN Calculator 48.