# R47 RPN Calculator

> HP Program Editor & Tutorials

Canonical page: [https://chrome-stats.com/d/id6763615664](https://chrome-stats.com/d/id6763615664)

## Overview

- **ID:** `id6763615664`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** MARCEL DAN
- **Category:** Education
- **Rating:** 5.00 / 5 (27 ratings)
- **Version:** 1.10
- **Last updated:** 2026-08-20
- **First published:** 2026-05-02
- **Size:** 61 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/r47-rpn-calculator/id6763615664)
- **Website:** [https://r47.dansbeesllc.com/privacy/](https://r47.dansbeesllc.com/privacy/)
- **Privacy policy:** [https://47explorer.dansbeesllc.com/privacy/](https://47explorer.dansbeesllc.com/privacy/)

## Description

An RPN calculator isn't just a tool for getting answers like a traditional exam calculator—it's a way of thinking. It mirrors how you naturally break problems into steps, making it more like an extension of your mind than a shortcut. 

A full HP-style RPN scientific calculator — on iPhone and iPad, offline, with no ads or tracking.

47 Calculator is a programmable Reverse Polish Notation scientific calculator. Trigonometry, logarithms, statistics, probability, finance, complex numbers, base conversions, matrix operations, numerical solvers — the full 47-series instruction set, in your pocket. 

Free includes the calculator, a program editor for reading and writing 47-series programs, reference documentation, and a full tutorial library — probability and statistics, finance, numerical methods, programming patterns, advanced RPN techniques.

The Pro version adds the Explorer — browse every menu, flag, mode, and operation the engine supports, searchable and cross-linked.
                                                                                                             
Works fully offline after first launch. Light and dark themes. No ads, no third-party analytics, no tracking, no account required.

## Rankings

- #214,869 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6763615664)