Leave a Review i41CX
Best Calculator Ever
Not only was the HP41 the best calculator ever, this app is the perfect reproduction of it.
The thing that really impresses me is that the app creator continually maintains it for new iOS releases, fixes any (rarely found) bugs and adds features. I've used this app since I bought my iPhone 3G and have never had a problem. Highly recommended!Show lessBredtwest
Great iPhone & iPad app
Best app ever for an iPhone. With this app I have been able to write several programs quickly to solve repetitive things I do all the time. This RPN calculator has been improved nicely to even allow more complex problems to be solved. It is very easy to use. You do need to under RPN but once you do this app is the best. Text prompts are also possible...Show lessZippy_pop
Great emulator
For those of us old enough to remember the heyday of the 28S, 11C, 15C, and the 41C[VX], this is a very nice emulator of the 41CX. The one thing that would make it better would be a native iPad mode.cenotaph
Love it
I love this app and have it on both my iPad and my iPhone.
I have the real thing sitting on my desk, but don't have it with me when I'm out shopping. Since the prices here are all in Thai Baht, I need it to convert.
Keep up the good work.JFFA
Excellent 41CX emulator!
This works flawlessly, and doesn't lose it's memory or require occasional repairs the way my actual HP41CX does. I love it.OWCA-Va
Just like the good old days.
I love this app! I don't use programming. I just love knowing where all the buttons are. Five stars!RTWV
HP41cx works great
I have been using the hp51 app for over a year now. It works exactly like my old hp41. It looks and feels like it. I even played around with the programming of it (even though there would be no point) and even that they got down to a tee.
Thumbs upOscarRod
Works well, great app
This works like the original calculator. I have been using the app for years now and it has not had an issue yet. It brings back the old, reliable RPN calculators I know and love. I still prefer the physical hp calculator when I have one handy but in a pinch this is the next best thing.NCS
No Documentation
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. I'm very disappointed with the app. Use it for 10 minutes before I deleted it (and that's where it will stay).Show lessjamesjimjimbo
Does What it Says it Will Do
I bought the printer upgrade, and it works good on my iPad, but the printer does not appear on the iPhone, so beware of the current functionality ... I am hopeful I can find a solution, but if not, the iPad app is good, in fact very good.
I am very happy to have an actual HP41 calculator, and am currently taking calculus using Larson's 10th, but in class I am trying to interface with this app instead of using my priceless 41.Show lessGigaPan
