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  • #: 15382
  • Price: free ($0.00) In Apple Store
  • Category: Productivity
  • Updated: 2016-09-26
  • Current Version: 1.3.6
  • 1.3.6
  • Size: 4.40 MB
  • Language: English
  • Seller: Markus Gonser
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © 2010 Markus Gonser
  •  Add to Favorite apps



m48 is an emulator for the famous HP48GX scientific calculators. Carry your favorite calculator along with you every day!

Don't miss September sale of the premium version m48+ at 50% off it's usual price!!

Despite many other skins, m48 comes with a new HP48GX skin called "Don't Panic LE":

It has several views:

- simple one for every day calculations in RPN

- comprehensive one, with all functionality of m48

- Supports swipes on the LCD making it ease to browse calculator menus, etc

=> Support of this App costs time and resources. m48 is charged the minimum price point of the App Store therefore.

IMPORTANT: An internet connection on your device required at first launch!


- Emulation of the HP48GX

- Auto setup at first launch.

- Variety of different skins.

- m48Multiskin: Changes appearance, revealing secondary and third functions (currently only HP48GX model, more skins for other models in future)

- Swipe input (currently only m48 "Don't Panic LE" Skin)

- Original skins

- m48GraphicsEngine: high performance plus support of graphical effects for a broad variety of skins.

- m48AudioEngine: high performance for sound effects.

- Emulator state saved on exit and recalled on start.

- Extensive information sections which is regularly updated and maintained: Help, FAQ, Tips'n'tricks.

- Double tap the LCD to get more information in the menu-section

What's New in Version 1.3.6

- Bugfix in new high resolution skins for iPad Air 2 and iPad Pros

iPhone Screenshots

m48 iPhone Screenshot 1

Video Reviews

No video review.

Customer reviews

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Rated 5/5 based on 3 customer reviews.


5/5 stars

Finally a RPN I will use!

I am a 48 user from way back, and I was looking for RPN with a stack. The 42 emulators were OK, but I wanted a 48 style stack.

Also, I didn't need all the functions, a simple version is ideal.

Well, the Don't Panic LE skin is just that, and you can reveal the full function keyboard with a swipe.

Great job!

5/5 stars

Really nice HP48 app

I used the HP-48SX and then GX for a long time before they died and I switched to a 49G (terrible) and then a 50G (much better). It is great to see a HP48 again, but now on my 4G iPod Touch. Because it is using an actual ROM image of the HP48 operating system, it works exactly the same as my dead calculator and is even programmable. And that's where I would like to see one improvement which would be the ability to import programs. Because this app is free, I'm not taking any stars off for that.

The screen is great, allowing you either a simplified RPN calculator with a stack or the full HP48, but when you press a shift key the buttons change to their shifted values. This is fantastic for finding obscure alpha characters.

Great job.

5/5 stars


This app is a great reproduction of the original (which I bought nearly 20 years ago in college). Rock on!


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The information may be outdated (2017-03-06 17:13:11). For actual information go to iTunes

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