Archived App

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

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  • Updated
Calculator12 RPN screenshot #1 for iPhone
Calculator12 RPN screenshot #2 for iPhone
Calculator12 RPN screenshot #3 for iPhone
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Calculator12 RPN screenshot #5 for iPhone
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ipad
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About

This app provides a reliable emulation of a popular financial calculator, offering accurate calculations and operational reliability. It enhances the original functionality with modern features like cash flow diagrams, scenario comparison, and emailable results, all while maintaining a fast and intuitive user experience.

RPN financial calculator emulation
Cash flow diagram format
Three independent cash flow scenarios
Capital multiplication for investors
Emailable results
Display of financial registers/stack
Pre-programmed leasing functions
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What's New in Calculator12 RPN

4.2.3

February 12, 2019

This app has been updated by Apple to display the Apple Watch app icon. Bug fix: The keyboard isn't squished anymore when launching in landscape on an iPad

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User reviews

Numbers too small

Please make the numbers larger. They are too small to be accurately touched.

Works fine

I have used this for years with no problems. When HP is selling (finally!) their own version, which is buggy and costs more, I can't understand why someone thinks this is a rip- off.

UPDATE OCTOBER 2017: Nuts! When OS 11 came out, this app stopped working. I went to the developer’s website, and it appeared moribund. No activity, no indication at all that this was not just another orphan product. So, sadly, I laid down my $25. (!!) and got the HP version, which is fine, but stupid expensive.

Now, out of nowhere, an update has appeared which seems to work fine with OS 11. Oh well.

Buy this version, it saves you money and works well, at least as far as I can tell after a short time.
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Love the app — Please fix Landscape

Great app, use it all the time. When are you going to fix the landscape mode. It appears to be wrong since the IOS11 update

Nice job!

This is a very nice implemtation of our beloved 12c. I love all the extra functionality. It's a little hard for me to use though, because some of the keys aren't where I'm used to seeing them. On the iPad, I hate that the stock background flashes before switching to my chosen background. Is there any way to get rid of that? Great calculator though and I haven't noticed any other issues with it.
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The best!

This is the best iPhone implementation of our favourite HP 12C calculator! Not only does it have all the features of the 12C, it also smartened it up with what a modern smartphone can offer with extra display info and conveniences. The pricing is also just right. Although I also have HP’s 15C port on my iPhone and use that for the various mundane calculations in a simplified portrait format, this one from Stone Meadow Development is my go-to for anything above that. No regret for the purchase from quite a while back and the support has been fantastic, now iOS7 updated. Can’t recommend enough!
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Developer apps

FAQ

What does Calculator12 RPN do?

Calculator12 RPN offers a faithful emulation of a popular financial calculator, providing accurate calculations and operational reliability. It includes modern features like cash flow diagrams, scenario comparison, and the ability to email results, enhancing the functionality of the classic device.

What are the key features of Calculator12 RPN?

Key features include a rock-solid emulation of a classic financial calculator, cash flow diagram format, the ability to evaluate three independent cash flow scenarios side-by-side, capital multiplication for investor exit strategies, and emailable results. It also displays financial registers or the stack and includes pre-programmed leasing functions.

Is Calculator12 RPN free to use?

Yes, this application listing provides an upgrade path for early adopters to a redesigned version and is maintained on the App Store to allow existing customers to upgrade their original purchase free of charge. It appears on the home screen as Calc12E.

What devices is Calculator12 RPN compatible with?

The app is designed for iPhone, iPod touch, and iPad devices. It leverages the unique features of iOS to improve financial problem-solving capabilities.

Who would benefit from using Calculator12 RPN?

This app is ideal for students, financial professionals, investors, and anyone who needs a dependable and enhanced financial calculator. Its emulation of a classic device appeals to those familiar with it, while its modern features offer significant advantages for current financial analysis.