Great iPhone & iPad app

Best app ever for an iPhone. With this app I have been able to write several programs quickly to solve repetitive things I do all the time. This RPN calculator has been improved nicely to even allow more complex problems to be solved. It is very easy to use. You do need to under RPN but once you do this app is the best. Text prompts are also possible...

Zippy_pop about i41CX, v6.2.4