RPN Calculator 48

Name: RPN Calculator 48
Price: 3.99 USD
Rating: 4.8 (238 reviews)
Author: Tom Kerrigan

By: Tom Kerrigan

RPN Scientific Calculator

Features & Capabilities

RPN Calculator 48 delivers a polished Reverse Polish Notation calculator experience as a Chrome extension. It mirrors scientific functionality, provides a 100-entry stack, six memory banks (A-F), and intuitive swipe gestures to undo and redo actions. The interface features large buttons and a clear display for quick, accurate calculations.

Based on HP's 48-series ergonomics, this extension emphasizes speed, reliability, and seamless state retention. It is built by the developer known for tChess and Learn Chess, bringing proven usability to your browser.

User Growth & Download Statistics

App Programming Education

By:

Tom Kerrigan

Rating:

4.80

(238)

Version:

1.0.8 Last updated: 2025-02-04

Version code:

872244404

Creation date:

2009-10-30

Compatible devices:

Size:

1.18MB

Price:

3.99

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 105,019 ▲ 9

Other rankings

#63 in calculator keyword 37 ▼ 5

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Tom Kerrigan

Apple Apps Store

https://apps.apple.com/us/app/rpn-calculator-48/id336580727

Website:

http://www.roamingtrek.com/rpncalc48/

User Reviews

Reviews consistently praise RPN Calculator 48 as a faithful HP 48/HP RPN emulation on iOS, with a fast, clean, ad-free interface. It’s described as reliable, easy to use, and a go-to tool for engineers and students who rely on RPN. Users value the nostalgic feel and the robust stack, plus strong value for the price and broad iOS compatibility. A few note it doesn't replicate every HP-48 feature (graphing, full programming) and some would like extras like haptic feedback or a scrolling stack.

Pros

Faithful HP 48/HP RPN emulation with a real stack, providing nostalgia for users who loved the classic calculators.
Fast, clean, no-frills interface that’s reliable, easy to use, and free of ads.
Strong value for the price; well maintained and compatible across iOS releases.
Portable go-to calculator for engineering work, great for quick calculations on the go.
Intuitive layout and sizable buttons that remind users of the classic HP experience.

Cons

Recent reviews

All self respecting engineering school students used the hp (real hp before Compaq merger) 48 and swan song 49 handheld calculators. I am amazed how tell this emulates it. With today’s dollars the real calculators sold for roughy $4k.

by Sa*****, 2026-04-16

This calculator is just the right mix of features/functions from the wonderful 48 series machine. For those fortunate enough to have learned RPN, you can relive that experience every time you are greeted by a need for computation.