RPNPro is a calculator for software engineers.

RPNPro uses RPN (Reverse Polish Notation) as an input scheme. It is based on the same four level stack model as provided by the original HP (Hewlett-Packard) calculators, featuring X, Y, Z and T registers.

The contents of the X register are always shown in decimal, hexadecimal and binary notation.

What’s New

Version 1.2

auto-adapts to all display sizes

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Dpjohn ,

Nice job

Love this, make my job easier

App Privacy

The developer, Felix Meier, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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