RPN Calc 13.0.5

RPN Calc 13.0.5

James Mattis  ❘ Commercial
iOS
out of 3 votes
Latest Version
13.0.5
Safe to install
VERY GOOD User Rating

This application offers a straightforward reverse Polish notation (RPN) calculator, inspired by the classic HP-32SII model and compatible across iPhone, iPad, and Apple Watch platforms.

For users accustomed to HP RPN calculators, the operation of this app should be familiar and intuitive, although it has been simplified for broader usability. It does not support programming features, binary, or hexadecimal calculations.

The interface emphasizes clarity and ease of use, with large buttons designed for quick input. It provides all essential functions necessary for rapid calculations when a mobile device is more accessible than a traditional calculator or computer.

Reflecting on vintage calculator watches from the 1980s—though none featured RPN—the app introduces an RPN calculator directly to the Apple Watch, offering a nostalgic yet practical tool for quick computations on your wrist.

Beyond the main calculator applications available on iPhone, iPad, and Apple Watch, RPN Calc also includes a compact Today Extension. This feature facilitates convenient access to quick calculations directly from the pull-down Today screen of your device.

Overview

RPN Calc is a Commercial software in the category System Utilities developed by James Mattis.

The latest version of RPN Calc is 13.0.5, released on 06/08/2025. It was initially added to our database on 06/08/2025.

RPN Calc runs on the following operating systems: iOS.

Users of RPN Calc gave it a rating of 4 out of 5 stars.

Pros

  • Simple and straightforward RPN (Reverse Polish Notation) calculator interface.
  • Useful for users familiar with RPN for quick calculations without parentheses.
  • Lightweight and easy to use.

Cons

  • Limited features compared to more advanced calculators.
  • Lack of support for complex calculations such as scientific functions.
  • May not be suitable for users unfamiliar with RPN notation.
  • Potentially outdated user interface or design.

Screenshots (Click to view larger)

Related


42s RPN Calculator

42s is an iOS adaptation of Thomas Okken's Free42, a stable re-implementation of the highly-regarded HP-42S RPN calculator. It functions natively on iPhones for optimal speed.

HomeWave

HomeWave is a customizable remote control application designed for the MiCasaVerde Vera home control system (Z-Wave) and is also compatible with OpenLuup.

PathCheck SafePlaces

PathCheck SafePlaces is an official app developed and published by the PathCheck Foundation. Its primary purpose is to assist in COVID-19 exposure notification and contract tracing in several jurisdictions including Haiti, Guam, Puerto …

RPN Anywhere

This is a straightforward RPN Calculator available for use on both iPhone and Apple Watch. ** Please Note ** This calculator employs Reverse Polish Notation for input, utilizing a different operation method from a standard calculator …
Secure and free downloads checked by UpdateStar

Buy now
App Store
Stay up-to-date
with UpdateStar freeware.

Latest Reviews

MatheGrafix MatheGrafix
MatheGrafix: Revolutionizing Math Visualization
Tavoletta Wacom Tavoletta Wacom
Elevate Your Creativity with Wacom's Tavoletta
CS 3D Imaging Light CS 3D Imaging Light
Transform Your Imaging Experience with CS 3D Imaging Light
W WeiyunApp
WeiyunApp: Efficient Cloud Storage from Tencent
115生活 115生活
Streamline Your Daily Life with 115生活
P Prima Cartoonizer versión
Transform Your Photos into Cartoons with Prima Cartoonizer!
UpdateStar Premium Edition UpdateStar Premium Edition
Keeping Your Software Updated Has Never Been Easier with UpdateStar Premium Edition!
Microsoft Edge Microsoft Edge
A New Standard in Web Browsing
Microsoft Visual C++ 2015 Redistributable Package Microsoft Visual C++ 2015 Redistributable Package
Boost your system performance with Microsoft Visual C++ 2015 Redistributable Package!
Google Chrome Google Chrome
Fast and Versatile Web Browser
Microsoft Visual C++ 2010 Redistributable Microsoft Visual C++ 2010 Redistributable
Essential Component for Running Visual C++ Applications
Microsoft OneDrive Microsoft OneDrive
Streamline Your File Management with Microsoft OneDrive

Latest Updates


PC Fresh 2025.11.03

Optimize Your PC for Peak Performance with PC Fresh!

Zoom 6.5.5.8927

Improve Your Communication with Zoom Video Conferencing

Balabolka 2.15.0.899

Transform Text to Speech with Balabolka

Internet Download Accelerator 7.1.3

Boost Your Download Speed with Internet Download Accelerator!

Notepad3 7

Efficient Text Editor for Windows Users

LibreCAD 2.2.1.2

LibreCAD: Free and Open-Source 2D CAD Software