my41CX Icon
Download my41CX

my41CX

my41CX is an advanced programmable and expandable RPN Calculator. It is a functionally equivalent to the world famouse HP-41C/CV/CX calculator.
Category Price Seller Device
Utilities Free Miroslav Perovic iPhone, iPad, iPod

Calculator features:
- Functionally equivalent to the HP-41C/CV/CX
- Programmable
- Four module ports provide access to HP-41 expansion pacs
- 63..319 Memory registers (depending on the model emulation)
- 441..2233 Program steps (depending on the model emulation)
- Support for .MOD files
- Beautiful and clean user interface

Note:
- Beep is not supported

Reviews

Works again!!!
mochuelin

It’s one of the best emulators I’ve used. Will be nice if you add an option for tactile/Haptic feedback for the keys... and the beep ;)


No longer functions after 13.3
Topwater7

Worked fine until iOS 13.3. Now comes up then closes Works now after an update. Thank you!


Works now!!
Mauleflyer

Love this app. Thanks for fixing it!


So much better! ?
iphone usah

The old hp41 rocks again! Looks and works great as HP41CX. Much faster than before. UI is really well done! Having trouble with the HP41CV + Math/Stat pack, but still awesome. Nice update Miroslav! ? Will continue using and testing. Old review: “ ... crashes upon first key press on latest update 10/2019 When it worked, it was slow (but free!). Also, I would make buttons larger. “


Crashes
mvassal

On an iPhone XS Max, with iOS 13.2.3, after loading it, this calc crashes systematically on hitting any key - in short, it's useless. --- The developer fixed the problem. Now the app is fine.


Loved it
flyingarmadillo

I loved it while it worked but apparently is incompatible with IOS 13.2 and app support no longer works. It opens but any further attempts to use it resulted in a return to the IOS home screen. Was my favorite but I can no longer recommend UPDATE: downloaded the latest update and it’s my favorite again. IOS 14.4 works great!


Superb
NN0M

In February 2021 the app was fixed and it works like a charm again. This was a favorite app until IOS 13 when it quit working. I am thrilled to have it back. The GUI is no longer the accurate visual reproduction of if the original HP layout; however the functionality is back! Today I Snoopy-danced with joy.


Application quits after touching screen. Not working.
Ísleif

A was using it for some time and was ok. For some reason now it closes after launch. Any place on the screen being touched makes the application close for no apparent reason. Otherwise it worked fine for me before. Good for me since then. After updated it started to work fine again. Thank you very much. NOTE: One more thing: The keys letters “V” and “W” are inverted when ALPHA mode is switched on.


HP-41CX
Dooley1955

Not functional. Locks up when running a program.


Unusable
TwoWeims

The font for the unshifted keys is too small to read.


Featured on lists