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HP41CV screenshot #1 for iPhone
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About

Experience the functionality of a classic 90s pocket calculator on your iPhone. This app offers UPN calculation with a basic course for new users. Many core functions are available for free, with advanced features offered as optional upgrades.

โœ“HP-41 CV calculator emulation
โœ“UPN (Reverse Polish Notation) calculation
โœ“Basic UPN course with examples
โœ“Core functions available for free
โœ“Optional advanced features
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What's New in HP41CV

5.0

April 3, 2023

Support of Binary values show printing and send to printer

User reviews

Multiplication

50 x .5 = 0, but 50 x 0.5 = 25.. at least in my experience.. so there may be a workaround for others having similar issues

ENG mode work wrong

The ENG mode doesnโ€™t seem to work like my physical HP-41cv calculator. The point of engineering notation is to work mostly with whole numbers. This app seems to convert everything to a decimal when an ENG mode. For example, 123 shows up as โ€œ0.123 03โ€ rather than โ€œ123.000 00โ€ and 16,000,000 shows up as โ€œ0.0160 09โ€ rather than โ€œ16.0000 06โ€. Maybe thereโ€™s a setting for this, but I canโ€™t find it so this app isnโ€™t useful to me.
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Not working

Canโ€™t get this app to do anything

Functional issues

Entered 17.3, 0.92 X and got zero. Repeated calculation and sometimes it displays the correct value but if I immediately repeat the calculation, each time thereafter I get a different result and value is decreasing.

Stack problem?

GUI looks good but math functions need to produce the right values
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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 80โ€™s. Canโ€™t use anything but RPN.

Developer apps

FAQ

What is HP41CV?

HP41CV is a mobile application that emulates the functionality of the classic HP-41 CV pocket calculator from the 1990s. It provides UPN calculation and includes a basic course for users unfamiliar with the concept.

Is HP41CV free to use?

Yes, HP41CV is free to download and use. Many of its core functions are available without charge. Advanced features like statistic functions, programmability, and printing are offered as optional in-app purchases.

Does HP41CV have ads?

No, HP41CV does not contain advertisements. The app is free to download and use, with optional features available for purchase.

What devices does HP41CV support?

HP41CV is compatible with iPhone, iPad, and iPod touch devices. It is designed to run on Apple's iOS operating system.

How often is HP41CV updated?

The latest version of HP41CV is 5.0, and it was last updated on April 3, 2023. This indicates that the app receives periodic updates to maintain compatibility and potentially add new features.

What is the age rating for HP41CV?

HP41CV has an age rating of 4+. This suggests that the content of the application is considered suitable for children aged four and above.

What is UPN in HP41CV?

UPN stands for Reverse Polish Notation, a calculation method where operators follow operands. HP41CV offers this genial handling, and a basic course with examples is included for users new to the UPN concept.

What are the optional features in HP41CV?

Optional features available for purchase in HP41CV include statistic functions, programmability, persistent key assignment, and new functions like printing. These enhance the calculator's capabilities beyond the free core functions.