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(923 Ratings)

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RpnCalc is the best and most popular RPN calculator on the Android Market.

It has an interface that users of the HP calculator line will be completely at home with, including these features:
Scientific mode
Basic (large key) mode
20 Memories
Key click (haptic feedback)
Continouous memory
16-level stack
Front four stack elements displayed
Memories are not sacrificed to make room for program steps
RpnCalc has a sixteen-level stack to hold more data.  The front four elements on the stack are visible at all times, making it much easier to keep track of where you are in your calculations.

See for manual

iPhone related for RpnCalc

RpnCalc was developed for Android by Edward Falk

Package name : org.efalk.rpncalc

System permissions : 1 Click here to show/hide list
  • android.permission.VIBRATE

I am the developer of this Application !

Screenshot(s) available for RpnCalc

Discussion(s) about RpnCalc in our forum

Comments and Ratings for RpnCalc

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by A Google User the 9/30/2013

Finally! Finally an RPN calculator that is functional and looks good.

by A Google User the 9/28/2013

Very good RPN calculator. Highly recommend this calculator for anyone.

by A Google User the 9/25/2013

Love this calculator My beloved 15C hasn't been out of its protective cover since I got this app. I haven't tried any other RPC calculator apps, but I have no need or desire too. This does everything I want. One feature I'd love to see: a widget that I can place on my lock screen for quick access to the calculator.

by A Google User the 9/21/2013

Nice This is exactly what I was looking for. If I could ask for one thing it would be that the fonts were slightly larger. I almost need my reading glasses to use it. (yeah I'm and old fart, that's why I use RPN). Update (9-21-13) The fonts have been enlarged on the latest release - Thanks so much for listening to our feedback, I don't need my reading glasses to use it! Also, I love the basic mode, most of what I do at work (electronic design engineer) can be done with this mode. Bravo to a great app.

by A Google User the 9/17/2013

Самый удобный калькулятор. Жаль, что этот калькулятор не программируемый. Поставил на телефон несколько RPN-калькуляторов, но этим пользуюсь чаще всех. Потому что он самый удобный: кроме "Scientific" есть режим "Basic" с большими кнопками.

by A Google User the 9/17/2013

Nice. This is great, but there's a bug. The C button clears the stack. It's not supposed to do that, that's what AC is for. (My bad! Thank you for the reply, haven't quite figured it out right away.)

by A Google User the 9/16/2013

Excellent app! As someone who went to college using hp rpn calculators, this app is not only excellent but brings back good memories of the days when rpn ruled the world...

by A Google User the 9/16/2013

Almost don't miss my HP

by A Google User the 9/14/2013

The % operation works even better than on the original HP calculators. than on the original HP calculators.

by A Google User the 9/13/2013

Fantastic! The best features of the HP-25C, the HP-11, and the HP-16 all combined in one app. HP calculator lovers (like me) will love having the features, feel, and appearance of these classic HP devices. There's even a Basic mode, which provides basic 4-function features with RPN. Those who try it who haven't discovered the advantages of RPN will be thankful they did. I can't thank the author enough!

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RpnCalc for Android was rated by Android Market Users on : 4.4/5


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