---
title: "RPN Calculator 48 - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "RPN Calculator 48 is a polished RPN replacement for Apple's calculator app:  - Same scientific functionality as Apple's calculator app* - Use swipe gestures to undo and redo operations! - Starts quick"
---

# RPN Calculator 48 — United States
> RPN Scientific Calculator

![RPN Calculator 48 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/39/8c/ce/398cce0a-1d88-7637-d235-76b343520a34/AppIcon-0-0-1x_U007emarketing-0-3-85-220.png/434x0w.png)

**Developer:** [Tom Kerrigan](https://apptail.io/developer/tom-kerrigan-bwv) (United States)
**Category:** Utilities
**Rating:** 4.8/5 (238 ratings)
**Price:** Free
**Bundle ID:** NTYFK6GEE8.RPNCalc48
**Store:** Apple App Store
**Country:** United States
**Version:** 1.0.8 (released 2025-02-04)
**Original Release:** 2009-10-30
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id336580727)
**AppTail Page:** [https://apptail.io/app/rpn-calculator-48-eoli/united-states](https://apptail.io/app/rpn-calculator-48-eoli/united-states)

## RPN Calculator 48 Description
RPN Calculator 48 is a polished RPN replacement for Apple's calculator app:

- Same scientific functionality as Apple's calculator app*
- Use swipe gestures to undo and redo operations!
- Starts quickly
- Large buttons
- Easy-to-read display
- 100 entry stack
- 6 memory buttons (A-F)
- 50+ levels of undo/redo
- Saves state on exit

The ergonomics (screen and keyboard layout) of RPN Calculator 48 were inspired by HP's outstanding 48-series calculator.

RPN Calculator 48 is made by the developer of tChess (the critically acclaimed iPhone chess game) and Learn Chess (the Apple Staff Favorite e-book).

* This app is not an HP 48 emulator.

## RPN Calculator 48 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/7c/21/df/7c21dff0-e68d-607a-c31f-534e458ec323/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/9b/b5/a1/9bb5a123-3651-e46e-d408-94672896e385/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/99/18/f7/9918f7bb-6c33-00ef-8927-8af071b4a620/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/40/d4/e4/40d4e437-98e5-a10c-2792-839cc566c353/pr_source.png/1242x2688.png)

## RPN Calculator 48 Rating Breakdown in United States
- 5 stars: 220 (92%)
- 4 stars: 8 (3%)
- 3 stars: 4 (2%)
- 2 stars: 1 (0%)
- 1 stars: 5 (2%)

## RPN Calculator 48 Reviews in United States

### ***** "Great product"
Anytime I don’t have my HP around. It’s a easy click open.
-- CWZercher, 2024-10-31

### ***** "Not the full functionality of an HP-48"
Doesn’t have the full functionality of an HP-48, but heck better than an infix calculator
-- KG2V, 2024-10-22

### ***** "Love it"
It’s perfect.
-- ontoxus, 2024-10-20

### ***** "Finally"
I am a retired engineer who likes my HP 48G that no longer works. RPN is my natural habitat and I usually have my iPhone with me.
-- Domenic52, 2024-07-09

### ***** "My go to calculator for years now"
Learned rpn on a 41cx so long ago. This app sits intuitively on an iPhone screen and is easily one of my favorite and most useful tools.
-- Aerial7, 2024-06-22

### ***** "Best RPN iOS calculator"
I’ve tried several free versions. I read the reviews and figured this one was worth the $4 risk.

No jankyness / bad UI. Mimics my old 48GX pretty well (minus the graphing features). Everything works as expected!

I don’t mind paying for software, especially if it motivates the developer to continue porting the app to each iOS release— (historically, a lot of my freeware apps have lost modern iOS support whenever Apple deprecates an old feature.)
-- Ryan Jacobs, 2024-06-01

### ***** "Perfect RPN Calculator"
Please keep updating it.
This is a perfect calculator!
-- jota58, 2024-04-25

### ***** "Exactly the RPN Calculator I Want on My Phone"
This app is far superior to the default iOS calculator app - mostly because it’s RPN. It does everything I need a smartphone calculator to do, and I don’t have to change the way I think about using a calculator. It works reliably and smoothly. It’s been the calculator app of choice on each of my last four iPhones!
-- MortReviews, 2024-03-25

### ***** "My Go To Calculator!"
This full feature scientific calculator is my go to calculator for everything. I love the RPN style of entry, science the classic HP 45 and 65 calculators I loved so much. It also has hexadecimal and octal modes that I used while working, not so much now that I am retired. Easy to use. Love the display.
-- Chuck Noren, 2024-03-08

### ***** "HP41 CV/CX has died"
Have a number of the 41 series and they have all finally died. 
This has been a good replacement although i haven’t explored it’s programmability.
-- NoelN, 2023-12-11

[View all RPN Calculator 48 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## RPN Calculator 48 Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Belgium | Utilities | #32 |
| Top Paid | Chile | Utilities | #223 |
| Top Paid | Algeria | Utilities | #237 |

## RPN Calculator 48 Discovered Keywords
- rpn calculator 48

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## RPN Calculator 48 Available In
- [United States](https://apptail.io/app/rpn-calculator-48-eoli/united-states)
- [France](https://apptail.io/app/rpn-calculator-48-eoli/france)
- [Germany](https://apptail.io/app/rpn-calculator-48-eoli/germany)
- [Switzerland](https://apptail.io/app/rpn-calculator-48-eoli/switzerland)
- [Canada](https://apptail.io/app/rpn-calculator-48-eoli/canada)
- [United Kingdom](https://apptail.io/app/rpn-calculator-48-eoli/united-kingdom)
- [Sweden](https://apptail.io/app/rpn-calculator-48-eoli/sweden)
- [Netherlands](https://apptail.io/app/rpn-calculator-48-eoli/netherlands)
- [Australia](https://apptail.io/app/rpn-calculator-48-eoli/australia)
- [Norway](https://apptail.io/app/rpn-calculator-48-eoli/norway)
- [Chile](https://apptail.io/app/rpn-calculator-48-eoli/chile)
- [Mexico](https://apptail.io/app/rpn-calculator-48-eoli/mexico)
- [Austria](https://apptail.io/app/rpn-calculator-48-eoli/austria)
- [Belgium](https://apptail.io/app/rpn-calculator-48-eoli/belgium)
- [Brazil](https://apptail.io/app/rpn-calculator-48-eoli/brazil)
- [Denmark](https://apptail.io/app/rpn-calculator-48-eoli/denmark)
- [Japan](https://apptail.io/app/rpn-calculator-48-eoli/japan)
- [New Zealand](https://apptail.io/app/rpn-calculator-48-eoli/new-zealand)
- [Spain](https://apptail.io/app/rpn-calculator-48-eoli/spain)
- [Singapore](https://apptail.io/app/rpn-calculator-48-eoli/singapore)
- [Slovenia](https://apptail.io/app/rpn-calculator-48-eoli/slovenia)
- [Thailand](https://apptail.io/app/rpn-calculator-48-eoli/thailand)
- [Italy](https://apptail.io/app/rpn-calculator-48-eoli/italy)
- [Algeria](https://apptail.io/app/rpn-calculator-48-eoli/algeria)
- [Finland](https://apptail.io/app/rpn-calculator-48-eoli/finland)
- [Portugal](https://apptail.io/app/rpn-calculator-48-eoli/portugal)
- [Ecuador](https://apptail.io/app/rpn-calculator-48-eoli/ecuador)
- [Hong Kong SAR China](https://apptail.io/app/rpn-calculator-48-eoli/hong-kong)
- [Pakistan](https://apptail.io/app/rpn-calculator-48-eoli/pakistan)
- [Poland](https://apptail.io/app/rpn-calculator-48-eoli/poland)
- [Romania](https://apptail.io/app/rpn-calculator-48-eoli/romania)
- [Russia](https://apptail.io/app/rpn-calculator-48-eoli/russia)
- [Saudi Arabia](https://apptail.io/app/rpn-calculator-48-eoli/saudi-arabia)
- [Türkiye](https://apptail.io/app/rpn-calculator-48-eoli/turkey)
- [Taiwan](https://apptail.io/app/rpn-calculator-48-eoli/taiwan)
- [Ukraine](https://apptail.io/app/rpn-calculator-48-eoli/ukraine)
- [Vietnam](https://apptail.io/app/rpn-calculator-48-eoli/vietnam)
- [United Arab Emirates](https://apptail.io/app/rpn-calculator-48-eoli/united-arab-emirates)
- [South Africa](https://apptail.io/app/rpn-calculator-48-eoli/south-africa)
- [Argentina](https://apptail.io/app/rpn-calculator-48-eoli/argentina)
- [Azerbaijan](https://apptail.io/app/rpn-calculator-48-eoli/azerbaijan)
- [Belarus](https://apptail.io/app/rpn-calculator-48-eoli/belarus)
- [China](https://apptail.io/app/rpn-calculator-48-eoli/china)
- [Colombia](https://apptail.io/app/rpn-calculator-48-eoli/colombia)
- [Czechia](https://apptail.io/app/rpn-calculator-48-eoli/czechia)
- [Dominican Republic](https://apptail.io/app/rpn-calculator-48-eoli/dominican-republic)
- [Estonia](https://apptail.io/app/rpn-calculator-48-eoli/estonia)
- [Egypt](https://apptail.io/app/rpn-calculator-48-eoli/egypt)
- [Greece](https://apptail.io/app/rpn-calculator-48-eoli/greece)
- [Hungary](https://apptail.io/app/rpn-calculator-48-eoli/hungary)
- [Indonesia](https://apptail.io/app/rpn-calculator-48-eoli/indonesia)
- [Ireland](https://apptail.io/app/rpn-calculator-48-eoli/ireland)
- [Israel](https://apptail.io/app/rpn-calculator-48-eoli/israel)
- [India](https://apptail.io/app/rpn-calculator-48-eoli/india)
- [Iceland](https://apptail.io/app/rpn-calculator-48-eoli/iceland)
- [South Korea](https://apptail.io/app/rpn-calculator-48-eoli/south-korea)
- [Kuwait](https://apptail.io/app/rpn-calculator-48-eoli/kuwait)
- [Kazakhstan](https://apptail.io/app/rpn-calculator-48-eoli/kazakhstan)
- [Lebanon](https://apptail.io/app/rpn-calculator-48-eoli/lebanon)
- [Latvia](https://apptail.io/app/rpn-calculator-48-eoli/latvia)
- [Mali](https://apptail.io/app/rpn-calculator-48-eoli/mali)
- [Malaysia](https://apptail.io/app/rpn-calculator-48-eoli/malaysia)
- [Nigeria](https://apptail.io/app/rpn-calculator-48-eoli/nigeria)
- [Panama](https://apptail.io/app/rpn-calculator-48-eoli/panama)
- [Peru](https://apptail.io/app/rpn-calculator-48-eoli/peru)
- [Philippines](https://apptail.io/app/rpn-calculator-48-eoli/philippines)

---

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