Name: HP41CV
Author: Jurgen Anton Strohmer

Description

The HP-41 CV for your iPhone!
The HP-41 CV was the best and handiest Pocket Calculator in the 90íst. (Part of the Apollo missions!) A UPN calculation with the same genial handling is now available for your iPhone. For all users, not familiar with the UPN Concept, a Basic course with examples is included.
The most functions of the HP 41 CV are available free. In addition statistic functions, programmability, persistent Key assignment and new functions like printing will be available as option.

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HP41CV FAQ

Is HP41CV free?

Yes, HP41CV is completely free and it doesn't have any in-app purchases or subscriptions.
Is HP41CV legit?

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How much does HP41CV cost?

HP41CV is free.
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User Rating

App is not rated in Finland yet.

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Ratings History

HP41CV Reviews

Leading Zero

I am seeing the same issue. If you multiply 50 by .5 you get zero. If you multiply 50 by 0.5 you get 25. Seems like a new issue. Otherwise I really like this app. Used a 41C since the 80’s. Can’t use anything but RPN.

41cv

This app no longer works on my phone. I tried deleting it and reinstalling it and it still does not work. Not all the keys are showing. It’s like it’s zoomed in on the upper right side of the calculator.

Unreliable

I’ve been using this app for years and really loved it for the familiarity of RPN and the fact that it works fairly like my HP41CV. I opened it yesterday to do a simple percentage calculation (40 * .25) and I get zero. It repeatedly returns zero. I guess this is the end of this great free app.

Stuck in scientific notation

Why did the latest upgrade stick my calculator in scientific notation? No idea how to switch back and no instructions provided.

Bug

There is a bug with the decimal key. Please fix!!!!

Worst mistake a calculator can make

So far, this calculator has given me the wrong answer to every question I have asked it. 60 x .5 = 50? 12% of 100 = 6? It seems to get it wrong more often than not. A calculator that gets the wrong answers is worse than useless. As much as I would like a free 41c emulator, this isn’t it.

I think there is a bug with .7 vs 0.7 with Last X

If you enter a decimal number without a leading zero (e.g., .7 rather than 0.7) the app seems to get confused thinking I pressed “Last X” and the math outcome is wrong… Try 100 enter 200 enter .5 X You get 50 (wrong) Try 100 enter 200 enter 0.5 X You get 100 (correct) I can’t believe this was always broken. It seems like a recently introduced bug.

Great before, unreliable now

60000 x .75 = 0.00 .75x 60000 = 45000 Very nervous with this upgrade

App quit working

What happened? App will not work! Worked fine for several years - now I select app icon and nothing!!

Key Board Colors &.Background Colors

Need to B adjustable 4 those of us with color sensitive eyes; due to the number of years we have been looking at monitors

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HP41CV Installs

Last 30 days

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HP41CV Revenue

Last 30 days

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HP41CV

Description

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HP41CV FAQ

Is HP41CV free?

Is HP41CV legit?

How much does HP41CV cost?

What is HP41CV revenue?