The 41Z module is hopelessly BROKEN
Loaded the complex math module and wasting my time it only produces garbled gibberish. ^IM/AG is not working. The ZSTACK is broken. This module is not functional and needs help
HP41CX Review
The best App I have ever bought. If you ever used a 41C and liked it I strongly recommend you buy it. If you are not of that generation but it just to see how smart it was. With this they have introduced new functions but kept very much with the original concept. Great for nostalgia and extremely useful if you are an afficiando of RPN.
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Overlays
The overlays do not scale correctly. Overlays are about 75% the size they need to be.
Old time 41CX user
I’m retired and I don’t use my old 41 daily. This app is better than the original because all the modules come built in. It's worth every penny. Who needs an “=“ key?
Favorite calculator app!
Works great! I’ve had this emulator on my iPhone for years and I love it. I actually have a working HP-41CV on my desk, but I find this app to be more useful (since you can copy, paste, etc.). Definitely recommend!!
Simply amazing!
As longterm user & fan of HP calculators and especially the 41cx I wanted to say your i41CX+ app is just amazing and very definitely worth the price. I’d encourage anyone who owned a 41cx or would have liked to have owned one to download this App - it’s the closest thing to owning one. And in some ways better - as you have access to every module ever released for the 41c without the need to own the physical hardware.
AndyHN
AndyHN
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love the LED skin!
excellent implementation. far cheaper than a vintage hp from ebay. tons of features and regular updates.
Still the best, and the dev keeps the program up to date with the latest OS upgrades. Thanks!
Also go get the Swiss micros dm41x. Whoa.
Still the best, and the dev keeps the program up to date with the latest OS upgrades. Thanks!
Also go get the Swiss micros dm41x. Whoa.
Great do-everything calculator
This is the calculator that got me through engineering. Even better than the original with a built-in printer and CAS features. My only complaints are that the loading of ROM packs and overlays leaves much to be desired and the manual offers more of a continuous feature advertisement than a understanding of pages, the strange behavior when loading modules. The help is a mixed up mess when you consider docs for the simulation, docs for the calculator, and docs for the ROM packs are all to be found in different places and accessed different ways and are sometimes old versions or dependent upon other modules. But when it comes down to the number crunching this calculator really shines.
It leaves me with the feeling of what a wonderful calculating device the developer could put together by taking the best ideas from this project and eliminating the irritating peculiarities of the HP41C. Perhaps I’ll stumble upon a way to access CAS and the I41CX-MATH module.
It’s time to scrap old design traditions and think a bit about designing a tool to do what the user needs. A bit of thinking ala SpaceX-style could produce a much more usable tool than the emulation of a product of 40 years ago.
It leaves me with the feeling of what a wonderful calculating device the developer could put together by taking the best ideas from this project and eliminating the irritating peculiarities of the HP41C. Perhaps I’ll stumble upon a way to access CAS and the I41CX-MATH module.
It’s time to scrap old design traditions and think a bit about designing a tool to do what the user needs. A bit of thinking ala SpaceX-style could produce a much more usable tool than the emulation of a product of 40 years ago.
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Superb
As a longtime user and fan, I have to applaud the design, implementation and continuing support and maintenance of this app. I cannot work without this RPN calculator.
Made it Perfect
My only hold up with this over the years has been the time it took for the app to open. I’m not very patient. You have really taken this to the next level. Opens instantaneously now and ready to calculate. I own an original HP41 but now this is my go to calculator. Thanks.
