i41CX

Description

i41CX is the same powerful advanced programmable RPN scientific calculator as the highly acclaimed i41CX+ but without the latter’s incredibly advanced capabilities such as the printer, expansion, CAS, etc. It is functionally equivalent to the world-renowned HP-41CX and inherits all of the i41CX+ usability features including extremely responsive and animated key clicks, audible key feedback sounds, optimally spaced keys for accurate input, traditional and upbeat modern diverse set of skins, etc.

If you are looking for a powerful programmable RPN scientific calculator but don’t need all of the capabilities of i41CX+ then i41CX is for you. And best of all, if you ever decide that you need the more advanced capabilities of i41CX+ you can enable them using secure in-app purchases right within the app!

FEATURES:
• RPN logic with a 4 element deep memory stack
• 319 main and 124 extended memory registers
• Over 300 built-in functions, including nearly 100 functions created specifically for i41CX
• Time, calendar, alarm, and stopwatch functions
• Rich set of functions and algorithms: numerical, mathematical, statistical, and much more
• Access to the entire HP-41 library of solutions for science, mathematics, statistics, engineering, business, financial, surveying, medicine, real estate, and many other domains
• Programmable - Over 2000 lines
• User definable keyboard
• Ability to operate the calculator using a Bluetooth keyboard
• Device integration: external display mirroring, copy and paste, GPS, accelerometer, digital compass, time and date synchronization, and much more
• iOS 8 Notification Center widget
• Sound support including synthetic tones and interface sounds
• Support for calculator skins and optional mini stack display
• Adjustable sound volume and display colors
• Usage & Examples table with usage tips and examples
• Quick reference guide of all built-in functions
• Beautiful and clean user interface

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A comprehensive FAQ is available at http://alsoftiphone.com/i41CX. Please don't hesitate to use the "Contact Us" link there if you cannot find the answers or information that you seek. Thank you.

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In-Apps

CAS Upgrade

$12.99

Printer Upgrade

$5.99

Overlays Upgrade

$4.99

i41CX+ Features Upgrade

$29.99

Screenshots

User Rating

5 out of 5

5 ratings in Australia

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Ratings History

Reviews

Outstanding Calculator

I had the “real” HP41C when I was at Uni 40 years ago. Still today it is the best, especially with RPN. Having this as such a well developed and supported App is an absolute Godsend ! Very well done.

So good and realistic

It feels so good to be to use my old HP41C again. Had one in Elec Eng university course and have missed it ever since. Well done to the developer and thanks for keeping it maintained.

I have used this app since it was released. My days studying engineering at Uni introduced me to the ways of RPN when Hewlett Packard first released this iconic scientific/engineering range of calculators. This app reminds me so vividly of the numerous times that the calculator was in my possession and it has been revived for me on my iPhone and iPad. It is a stellar tool that is reliable, aesthetically extremely pleasing and above all else, translates to the Apple platform, exactly what I experienced using the real product made by HP! I note with interest and agree also, that the price for the privilege of enabling a number of significant features is a testament to the developer. To make available wonderful add-ons that fully utilise the most powerful and useful mechanisms available for all users and especially so for engineers and professionals wanting to keep alive this unique style of computing technology in the palm of your hand - all at a reasonable and value-packed pricing structure. Well done!!

Really good.

Great find. I use it all the time.

Latest version has bugs please fix

Have been using this calculator for a few years and it has been great. Am having problems using it on iPad Air lately with calculator hanging and not accepting key inputs. Limits usability as I can not rely on answers. Please fix

Fantastic

This is a superb reproduction of an HP41CX. I still own the genuine original article, but the convenience of having an exact, full-functional replica on my iPhone and iPad is fantastic. Best of all, you can download all of the plug-in modules that HP originally sold for the calculator, plus a heap of third party modules to give the calculator lots of extra functionality. If there is only one calculator app that you ever purchase for your iPhone/iPad, this should be it.

i41CX - the best

RPN calculators seem to have fallen seriously out of favour! Against all logic it would seem as really they are a far more efficient way of calculating than on a 'normal' calculator. I can't imagine trying to do complex calculations with multiple nested brackets etc. RPN really is the best method and the 41CX must be one of the best calculators ever made - bar none. Of course you could get a brand name HP RPN calculator.... (but not a HP41 as it turns out) but crikey!!! their prices are outrageous! Get this one before these guys wake up and raise the price! Highly recommended..

Store Rankings

Chart	Category	Rank
Top Paid	Belgium Productivity	112
Top Paid	Switzerland Productivity	120
Top Paid	South Africa Productivity	134
Top Paid	Austria Productivity	142
Top Paid	Ecuador Productivity	168

Chart

Name	Reviews	Recent release
RPN-65 SD First programmable calculator!	0	4 months ago
RPN-34 CE Legendary classic calculator	0	5 months ago
WP 34s	1	3 months ago
Vintage-45 Vintage Calculator (1973)	1	7 months ago
RLM-15CX Advance Scientific Calculator	0	2 months ago
RPN 28x Calc Math can be fun.	2	1 year ago
RPN-70 SD Very rare vintage calculator	0	1 year ago
RPN-55 SD Classic HP Calculator w/Timer	0	5 months ago
RPN-35 SD First scientific calculator!	0	1 year ago
RPN-45 SD Vintage Calculator (1973)	0	6 months ago

Description

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User Rating

Ratings History

Reviews

Outstanding Calculator

So good and realistic

i41CX

Really good.

Latest version has bugs please fix

Fantastic

i41CX - the best

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