i41CX app for iPhone and iPad
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 dont hesitate to use the "Contact Us" link there if you cannot find the answers or information that you seek. Thank you.
Pros and cons of i41CX app for iPhone and iPad
i41CX app good for
Perfect replacement of my trusted HP41c. Folds two devices into one.
The HP-41, when it began its career, some thirty years ago, was a quantum leap in computer engineering. It is one of the best scientific calculator ever made. The only problem is that the HP-41 is not produced anymore.
But this was before AL Software has developped this wonderful emulator. It is as close as you can get from the real thing.
If you need a scientific calculator, BUY this program. It is an absolute MUST HAVE. Even if you have to buy an iPod Touch just to run it, it still worth the deal…
My first calculator I bought was the HP41CV, and it stopped working a couple years ago. I grew up with RPN and thats how I think. Researching the history of the HP41 series for my 13yr old son, found this app! Wow! I can have my CV back... And even upgrade to the CX! Regrettably, I cannot migrate my programs, nor plug in my expansion packs, but its fantastic to see the old familiar keyboard on my iPhone!
it used to be one of the most reliable and most used of my applications. the latest version 3.0 - be careful as it might crash. i have not the time or patience to check for eventual incompatitbilities - it just crashes ;-( very sad. hope al software will soon publish a stable version.
Love this app and my phone goes where I go! And not lose any of my functions that I use often
With real programmability like the original (now nearly 40-years old), you should have little difficulty transitioning to the iPhone version. Fish out the original manual if youre rusty (it isnt supplied), and yes, you can upgrade in-app for the emulated plug-in packs (nothing to download, as they are already built-in, awaiting payment).
Some bad moments
Last update does not show numbers on screen. Please fix. Once fixed this is a 5 star product I use daily. Thanks
They should be more clear that the modules are not available with the i41CX and you have to get the i41CX+ for the modules to work. Their product description for the i41CX indicates that you have access to all the HP modules. So I bought the basic version with an update for overlay. It turned out that all modular functions are NONEXISTENT unless you purchase the + version. I want to return the product if I can.
The GUI is very coarse on retina display. It is still iPhone scale and does not use the iPads full display to give quick access to all of the great functions. Most of the skins (after an extra 2.99 purchase) are very low-res and look like scanned and heavily compressed jpegs with compression artifacts. The only hi-res skin is poorly designed where buttons are indistinguishable from one another making it difficult to find the right one. Inverse pinching (to enlarge the the calculator image) resulted in "memory ..." flashing on LCD that would render any further calculations impossible and required a hard reset to fix.
A blast from the past that should have stayed there. If you like RPN calculators, there are others that have more documentation than reference to an archival site with scanned pages of original manuals. For those who used to use these remembering those days is more useful that this app. Im very disappointed with the app. Use it for 10 minutes before I deleted it (and thats where it will stay).
