RPN-45 app for iPhone and iPad

4.3 ( 7263 ratings )

Utilities Productivity
Developer: AmeloConsulting

5.99 USD

Current version: 3.2.2, last update: 7 years ago
First release : 10 Jul 2012
App size: 1.21 Mb

A bit exact RPN emulator of the HP 45, the first scientific RPN calculator with a shift key introduced by HP in 1973. This application employs the same mathematical computation found in the original calculator.