---
title: "Complex RPN Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Complex RPN Calculator is a scientific RPN calculator with a four stack whose native number is complex. You can view and enter numbers in both polar and rectangular formats. Complex RPN remembers its "
---

# Complex RPN Calculator — United States
> Complex Numbers RPN Calculator

![Complex RPN Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/06/94/bd/0694bda9-9f47-757d-5043-c3cbfc183871/AppIcon-0-0-1x_U007epad-0-1-85-220.png/400x400bb.png)

**Developer:** [John Coddington](https://apptail.io/developer/john-coddington-CJH)
**Category:** Utilities
**Rating:** 3.8/5 (22 ratings)
**Price:** Free
**Bundle ID:** com.johncoddington.cmpxRPN
**Store:** Apple App Store
**Country:** United States
**Version:** 6.0 (released 2025-09-18)
**Original Release:** 2011-07-09

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id291826330)
**AppTail Page:** [https://apptail.io/app/complex-rpn-calculator-kUnd/united-states](https://apptail.io/app/complex-rpn-calculator-kUnd/united-states)

## Complex RPN Calculator Description
Complex RPN Calculator is a scientific RPN calculator with a four stack whose native number is complex. You can view and enter numbers in both polar and rectangular formats. Complex RPN remembers its state between usages and has 10 memory locations.

## Complex RPN Calculator Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/75/2b/ee/752bee84-d833-87bf-4d87-97ae5de38ae5/mzm.qbzicayj.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/19/e0/c9/19e0c976-0bf6-9aff-f34c-8ce1e5ac78f5/pr_source.png/960x640.png)

## Complex RPN Calculator Rating Breakdown in United States
- 5 stars: 13 (59%)
- 4 stars: 3 (14%)
- 3 stars: 0 (0%)
- 2 stars: 1 (5%)
- 1 stars: 5 (23%)

## Complex RPN Calculator Reviews in United States

### *---- "Why does the app mute other apps?"
When playing music or listening to a podcast, when you use the  calculator it mutes the music.  Why?
This must be fixed. I’m looking for another rpn calculator that doesn’t do this?

Fix it please
-- At the gym, 2023-07-30

### ***** "Good RPN"
This app is great! I have been using this app for years as a clean and simple, RPN scientific calculator. I was surprised to see the recent update to SwiftUI. On one hand, the update adds some great functionality, like the ability to turn the click sound from the key press off, maculate how the numbers are displayed, and let's you see the stack. On the other hand, SwiftUI is just downright fugly. There's no other way to say it. It really stinks. That isn't this developer's fault, it's Apple's. What makes it ugly is that there's too much border, or white space, around the buttons. IT's true for every other app I've seen migrated to SwiftUI. They all get ugly and harder to use.
-- Andrew579, 2023-07-26

### *---- "Update to SwiftUI has slow entries"
The calculator keyboard responds very slowly with this update. I can type 4-5 numbers before the first number appears. 

Very annoying and difficult to see if one has made a mistake on entry until a few seconds later. 

I am using an iPhone 14 Pro Max.
-- Full_Metal_Jacket, 2023-07-12

### ***** "Cool little Calculator"
Works well on MacOS
-- goober183, 2023-07-10

### ****- "Found a fault"
When an imaginary number like X=j1.837526E18 is entered X^2[X] is correct but X^3 is not.
-- rwbrick, 2022-03-20

### ***** "Free, simple, functional, no ads or in-app purchases. Awesome."
So far so good on iPhone SE.
-- jimpudar, 2018-05-12

### ****- "Good RPN Calculator"
The design is clean and it’s RPN. It would be nice if it showed the stack but that’s my only quibble.
-- IP3uset, 2018-01-04

### *---- "Calculator doesn’t work"
This no longer works with the latest iOS software. I paid good money which is now lost!
-- Kirk201299, 2017-09-20

### ***** "RPN!"
RPN! Need I say any more?
-- YasBean, 2016-11-24

### ***** "Best iPhone 6 free RPN calculator"
Sweet little app for both portait and landscape HP calculator fans!
-- Jenois, 2016-04-23

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



## Complex RPN Calculator Discovered Keywords
- complex rpn calculator


## Complex RPN Calculator Available In
- [United States](https://apptail.io/app/complex-rpn-calculator-kUnd/united-states)
- [Spain](https://apptail.io/app/complex-rpn-calculator-kUnd/spain)
- [Austria](https://apptail.io/app/complex-rpn-calculator-kUnd/austria)
- [Romania](https://apptail.io/app/complex-rpn-calculator-kUnd/romania)
- [Taiwan](https://apptail.io/app/complex-rpn-calculator-kUnd/taiwan)
- [Portugal](https://apptail.io/app/complex-rpn-calculator-kUnd/portugal)
- [Saudi Arabia](https://apptail.io/app/complex-rpn-calculator-kUnd/saudi-arabia)
- [Colombia](https://apptail.io/app/complex-rpn-calculator-kUnd/colombia)
- [Czechia](https://apptail.io/app/complex-rpn-calculator-kUnd/czechia)
- [Lithuania](https://apptail.io/app/complex-rpn-calculator-kUnd/lithuania)
- [Israel](https://apptail.io/app/complex-rpn-calculator-kUnd/israel)
- [Belgium](https://apptail.io/app/complex-rpn-calculator-kUnd/belgium)
- [Kuwait](https://apptail.io/app/complex-rpn-calculator-kUnd/kuwait)
- [Mexico](https://apptail.io/app/complex-rpn-calculator-kUnd/mexico)
- [Canada](https://apptail.io/app/complex-rpn-calculator-kUnd/canada)
- [Hungary](https://apptail.io/app/complex-rpn-calculator-kUnd/hungary)
- [Ecuador](https://apptail.io/app/complex-rpn-calculator-kUnd/ecuador)
- [Russia](https://apptail.io/app/complex-rpn-calculator-kUnd/russia)
- [Norway](https://apptail.io/app/complex-rpn-calculator-kUnd/norway)
- [Kazakhstan](https://apptail.io/app/complex-rpn-calculator-kUnd/kazakhstan)
- [Türkiye](https://apptail.io/app/complex-rpn-calculator-kUnd/turkey)
- [Luxembourg](https://apptail.io/app/complex-rpn-calculator-kUnd/luxembourg)
- [China](https://apptail.io/app/complex-rpn-calculator-kUnd/china)
- [Pakistan](https://apptail.io/app/complex-rpn-calculator-kUnd/pakistan)
- [Poland](https://apptail.io/app/complex-rpn-calculator-kUnd/poland)
- [South Africa](https://apptail.io/app/complex-rpn-calculator-kUnd/south-africa)
- [Singapore](https://apptail.io/app/complex-rpn-calculator-kUnd/singapore)
- [United Kingdom](https://apptail.io/app/complex-rpn-calculator-kUnd/united-kingdom)
- [United Arab Emirates](https://apptail.io/app/complex-rpn-calculator-kUnd/united-arab-emirates)
- [Japan](https://apptail.io/app/complex-rpn-calculator-kUnd/japan)
- [Argentina](https://apptail.io/app/complex-rpn-calculator-kUnd/argentina)
- [Australia](https://apptail.io/app/complex-rpn-calculator-kUnd/australia)
- [Brazil](https://apptail.io/app/complex-rpn-calculator-kUnd/brazil)
- [Switzerland](https://apptail.io/app/complex-rpn-calculator-kUnd/switzerland)
- [Chile](https://apptail.io/app/complex-rpn-calculator-kUnd/chile)
- [Germany](https://apptail.io/app/complex-rpn-calculator-kUnd/germany)
- [Denmark](https://apptail.io/app/complex-rpn-calculator-kUnd/denmark)
- [Dominican Republic](https://apptail.io/app/complex-rpn-calculator-kUnd/dominican-republic)
- [Estonia](https://apptail.io/app/complex-rpn-calculator-kUnd/estonia)
- [Egypt](https://apptail.io/app/complex-rpn-calculator-kUnd/egypt)
- [Finland](https://apptail.io/app/complex-rpn-calculator-kUnd/finland)
- [France](https://apptail.io/app/complex-rpn-calculator-kUnd/france)
- [Greece](https://apptail.io/app/complex-rpn-calculator-kUnd/greece)
- [Hong Kong SAR China](https://apptail.io/app/complex-rpn-calculator-kUnd/hong-kong)
- [Croatia](https://apptail.io/app/complex-rpn-calculator-kUnd/croatia)
- [Indonesia](https://apptail.io/app/complex-rpn-calculator-kUnd/indonesia)
- [Ireland](https://apptail.io/app/complex-rpn-calculator-kUnd/ireland)
- [India](https://apptail.io/app/complex-rpn-calculator-kUnd/india)
- [Italy](https://apptail.io/app/complex-rpn-calculator-kUnd/italy)
- [Jordan](https://apptail.io/app/complex-rpn-calculator-kUnd/jordan)
- [South Korea](https://apptail.io/app/complex-rpn-calculator-kUnd/south-korea)
- [Lebanon](https://apptail.io/app/complex-rpn-calculator-kUnd/lebanon)
- [Latvia](https://apptail.io/app/complex-rpn-calculator-kUnd/latvia)
- [North Macedonia](https://apptail.io/app/complex-rpn-calculator-kUnd/north-macedonia)
- [Malaysia](https://apptail.io/app/complex-rpn-calculator-kUnd/malaysia)
- [Nicaragua](https://apptail.io/app/complex-rpn-calculator-kUnd/nicaragua)
- [Netherlands](https://apptail.io/app/complex-rpn-calculator-kUnd/netherlands)
- [New Zealand](https://apptail.io/app/complex-rpn-calculator-kUnd/new-zealand)
- [Peru](https://apptail.io/app/complex-rpn-calculator-kUnd/peru)
- [Philippines](https://apptail.io/app/complex-rpn-calculator-kUnd/philippines)
- [Sweden](https://apptail.io/app/complex-rpn-calculator-kUnd/sweden)
- [Slovenia](https://apptail.io/app/complex-rpn-calculator-kUnd/slovenia)
- [Slovakia](https://apptail.io/app/complex-rpn-calculator-kUnd/slovakia)
- [El Salvador](https://apptail.io/app/complex-rpn-calculator-kUnd/el-salvador)
- [Thailand](https://apptail.io/app/complex-rpn-calculator-kUnd/thailand)
- [Uruguay](https://apptail.io/app/complex-rpn-calculator-kUnd/uruguay)
- [Venezuela](https://apptail.io/app/complex-rpn-calculator-kUnd/venezuela)
- [Vietnam](https://apptail.io/app/complex-rpn-calculator-kUnd/vietnam)
- [Algeria](https://apptail.io/app/complex-rpn-calculator-kUnd/algeria)
- [Cyprus](https://apptail.io/app/complex-rpn-calculator-kUnd/cyprus)
- [Paraguay](https://apptail.io/app/complex-rpn-calculator-kUnd/paraguay)
- [Belarus](https://apptail.io/app/complex-rpn-calculator-kUnd/belarus)
- [Brunei](https://apptail.io/app/complex-rpn-calculator-kUnd/brunei)
- [Bahrain](https://apptail.io/app/complex-rpn-calculator-kUnd/bahrain)
- [Sri Lanka](https://apptail.io/app/complex-rpn-calculator-kUnd/sri-lanka)
- [Azerbaijan](https://apptail.io/app/complex-rpn-calculator-kUnd/azerbaijan)
- [Madagascar](https://apptail.io/app/complex-rpn-calculator-kUnd/madagascar)
- [Bulgaria](https://apptail.io/app/complex-rpn-calculator-kUnd/bulgaria)
- [Jamaica](https://apptail.io/app/complex-rpn-calculator-kUnd/jamaica)
- [Ukraine](https://apptail.io/app/complex-rpn-calculator-kUnd/ukraine)
- [Nigeria](https://apptail.io/app/complex-rpn-calculator-kUnd/nigeria)
- [Angola](https://apptail.io/app/complex-rpn-calculator-kUnd/angola)
- [Armenia](https://apptail.io/app/complex-rpn-calculator-kUnd/armenia)
- [Iceland](https://apptail.io/app/complex-rpn-calculator-kUnd/iceland)
- [Nepal](https://apptail.io/app/complex-rpn-calculator-kUnd/nepal)
- [Uzbekistan](https://apptail.io/app/complex-rpn-calculator-kUnd/uzbekistan)
- [Panama](https://apptail.io/app/complex-rpn-calculator-kUnd/panama)
- [Tunisia](https://apptail.io/app/complex-rpn-calculator-kUnd/tunisia)
- [Barbados](https://apptail.io/app/complex-rpn-calculator-kUnd/barbados)
- [Ghana](https://apptail.io/app/complex-rpn-calculator-kUnd/ghana)

---

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