RPN-70 HD

Very rare vintage calculator

Published by: Willy Kunz
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Revenue

Description

RPN-70 HD is a complete, photo-realistic simulation of the financial hand-held calculator HP-70 from 1974. It handles loan amortization, saving plans, depreciation, and much more with ease.
What users said:
"Hard to find a decent calculator on iPad, try this one."
"I don't normally write reviews but RPN-70 is just too fantastic to not get excited about. Apple should list this app under their Education category in the App Store and make it a must have for every college bound student. It is the best HP emulator in the market."
"An incredibly well-engineered calculator app, and free, to boot!"
"This is a really cool Financial calculator. Just like using the original HP-70. Accurate to the penny."

Features:
• Photo-realistic look based on an existing device
• "Live" register view in landscape mode
• Animated keys with click sound (adjustable volume)
• All functions and operations of the HP-70 fully implemented
• Simulation of the HP-70's computation time (optional)
• Correct wrong number entries by swiping left across the display
• Cut/copy/paste of display value
• Visual indicators keep track of stored input parameters (optional)
• Stack shown right below display (optional)
• 10 non-volatile memory registers (optional)
• Built-in short manual with many examples
The HP-70 was discontinued after just one year. It is one of the rarest calculators, hard to find in any condition.
NOTE:
RPN-70 HD is a faithful simulation of a vintage HP-70 calculator, as has been verified against a real device using the examples in the Applications Cookbook section of the HP-70 manual. In certain cases, what may appear like a bug of the app is actually an idiosyncrasy of the HP-70.
IMPORTANT: The HP-70 requires exactly three input parameters from the top-row keys, at least one of them being either "n" or "i". In other words, you can't use PMT, PV, and FV as input parameters simultaneously.
A version for the iPhone named "RPN-70 SD" is also available.
Visit the website: www.cuveesoft.ch
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RPN-70 HD FAQ

  • Is RPN-70 HD free?

    Yes, RPN-70 HD is completely free and it doesn't have any in-app purchases or subscriptions.

  • Is RPN-70 HD legit?

    ✅ The RPN-70 HD app appears to be high-quality and legitimate. Users are very satisfied.

    Thanks for the vote

  • How much does RPN-70 HD cost?

    RPN-70 HD is free.

  • What is RPN-70 HD revenue?

    To get estimated revenue of RPN-70 HD app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating
App is not rated in South Africa yet.
Ratings History

RPN-70 HD Reviews

Beautiful Emulation !

BobinSF94109 on

United States

Beautiful Emulation of a classic. I love this app and it’s iPhone companion as well. Wonderfully designed and true to the original.

Great

Yes MLB rocks on

United States

Hard to find a decent calculator on iPad, try this one.

No landscape mode...useless!

T. Watson on

United States

Why assume that everyone will use this in portrait mode? No way to change it that I can find. Deleted...

Simply amazing

Soggydog on

United States

I don't normally write reviews but RPN-70 is just too fantastic to not get excited about. Apple should list this app under their Education category in the App Store and make it a must have for every college bound students. It is the best HP emulator in the market. If you are a fan of HP calculators, this is it, and it is free!! Thank you CuVee. Now is it too much if I ask for an iPhone version?

Perfect

Stev6426392 on

United States

Exactly what I was looking for. A real HP RPN machine.

Awesome Calculator !

Iowa_Florence on

United States

This is a really cool Financial calculator. Just like using the original HP-70. Accurate to the penny. Hmmm, I wish they'd come out with a version for my i-Phone. Happy to pay for it. Great job!

Excellent

Cran43 on

United States

Mr Kunz is a master designer. I just got his HP 45 emulator which too is fabulous. Very thoughtfully designed, complete with crisp instructions, useful settings. It's a joy. I never had an HP 70 but looks like a simple, elegant product. Thanks!

Excellent Simulation

Webunit1 on

United States

This app is both functional and beautiful. The calculator looks like the real thing and the animated buttons look like they actually move. The display is also an extremely accurate simulation of the actual HP-70 display. The paper currency background on the iPad is a very nice touch. The button click sound is cool and it can be turned off for silent operation. While this reviewer has not tested all the functions, the app has been tested thoroughly by the developer against an actual HP-70. A very good simulation of a very powerful, classic, HP business calculator.

Good Job!

Maureen Long on

United States

I had an HP-70 and used it a lot. From the few calculations that I made, this app seems to work just as it did.

Good simulation

Restoring Tally on

United States

I bought an original HP-55 years ago. I still have it, but I don't use it. I always wanted a financial calculator like the HP-70. This app is a faithful simulation.

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