RPN Calculator 48

RPN Scientific Calculator

Published by: Tom Kerrigan

Description

RPN Calculator 48 is a polished RPN replacement for Apple's calculator app:
- Same scientific functionality as Apple's calculator app*
- Use swipe gestures to undo and redo operations!
- Starts quickly
- Large buttons
- Easy-to-read display
- 100 entry stack
- 6 memory buttons (A-F)
- 50+ levels of undo/redo
- Saves state on exit
The ergonomics (screen and keyboard layout) of RPN Calculator 48 were inspired by HP's outstanding 48-series calculator.
RPN Calculator 48 is made by the developer of tChess (the critically acclaimed iPhone chess game) and Learn Chess (the Apple Staff Favorite e-book).
* This app is not an HP 48 emulator.
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RPN Calculator 48 FAQ

  • Is RPN Calculator 48 free?

    Yes, RPN Calculator 48 is completely free and it doesn't have any in-app purchases or subscriptions.

  • Is RPN Calculator 48 legit?

    ✅ The RPN Calculator 48 app appears to be high-quality and legitimate. Users are very satisfied.

    Thanks for the vote

  • How much does RPN Calculator 48 cost?

    RPN Calculator 48 is free.

  • What is RPN Calculator 48 revenue?

    To get estimated revenue of RPN Calculator 48 app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating

4.82 out of 5

206 ratings in United States

5 star
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Ratings History

RPN Calculator 48 Reviews

Great product

CWZercher on

United States

Anytime I don’t have my HP around. It’s a easy click open.

Not the full functionality of an HP-48

KG2V on

United States

Doesn’t have the full functionality of an HP-48, but heck better than an infix calculator

Love it

ontoxus on

United States

It’s perfect.

Finally

Domenic52 on

United States

I am a retired engineer who likes my HP 48G that no longer works. RPN is my natural habitat and I usually have my iPhone with me.

My go to calculator for years now

Aerial7 on

United States

Learned rpn on a 41cx so long ago. This app sits intuitively on an iPhone screen and is easily one of my favorite and most useful tools.

Best RPN iOS calculator

Ryan Jacobs on

United States

I’ve tried several free versions. I read the reviews and figured this one was worth the $4 risk. No jankyness / bad UI. Mimics my old 48GX pretty well (minus the graphing features). Everything works as expected! I don’t mind paying for software, especially if it motivates the developer to continue porting the app to each iOS release— (historically, a lot of my freeware apps have lost modern iOS support whenever Apple deprecates an old feature.)

Perfect RPN Calculator

jota58 on

United States

Please keep updating it. This is a perfect calculator!

Exactly the RPN Calculator I Want on My Phone

MortReviews on

United States

This app is far superior to the default iOS calculator app - mostly because it’s RPN. It does everything I need a smartphone calculator to do, and I don’t have to change the way I think about using a calculator. It works reliably and smoothly. It’s been the calculator app of choice on each of my last four iPhones!

My Go To Calculator!

Chuck Noren on

United States

This full feature scientific calculator is my go to calculator for everything. I love the RPN style of entry, science the classic HP 45 and 65 calculators I loved so much. It also has hexadecimal and octal modes that I used while working, not so much now that I am retired. Easy to use. Love the display.

HP41 CV/CX has died

NoelN on

United States

Have a number of the 41 series and they have all finally died. This has been a good replacement although i haven’t explored it’s programmability.

Store Rankings

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