Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app Complex RPN Calculator PRO by John Coddington, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

Complex RPN Calculator PRO

By John Coddington

Open iTunes to buy and download apps.


Complex RPN Calculator is a scientific RPN calculator with a ten 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.

Pro adds portrait orientation over free version.

What's New in Version 1.3

Updated to support all display sizes.
Updated button graphics.
Updated 2nd and hyp to not auto release.


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews

Only Calculator that I need

I have been using this or a previous version for year and all I need to say is that it is great. The ability to have an RPN calculator on both my iPhone and iPad is great. While I have regular RPN calculator, I never have to take it out when I have my iPhone and Complex RPN Calculator with me all the time.

App crashes after OS update

From the developer.

Upon opening the app immediately crashes. Reinstalling appears to resolve the problem. Will try to debug issue and come out with an update that resolves the problem without having to reinstall.


I can honestly say that this was the worst app I've ever gotten. The calculating methods are nearly impossible to get used to and don't make any sense.

Complex RPN Calculator PRO
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Utilities
  • Updated:
  • Version: 1.3
  • Size: 0.3 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
All Versions: