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FREE Everyone android In-app purchase
Arnaud Brochard
Overall Satisfaction click me 93
The HP 48GX is arguably the best engineering calculator ever made.
Great emulator for one of the best calculators made during my college years.
Would like to see HP49/50 emulation too.
Just like my 48sx Thank you for bringing this to Android.
Thanks mate.
Better than real thing on Tablet.
Fun & Engaging click me 83
you'd be hard-pressed to find a finer calculator application.
Awesome emulator.
I use it at work all the time.
Usefulness click me 98
Use it almost every day.
Works great for everything I've used it for.
Absolute essential app.
Production Values click me 53
bring back old interface our make it selectable at least.
New graphics are wonderful.
Ease of Use click me 91
So convenient and powerful.
I like Free42 a touch better for simpler tasks.
Reliability click me 42
Updates & Support click me 73
Hopes developer release a version with full screen mode + gives instrucation in the.
Click blue bar for explanation of rating.
Emulator of the HP 48 scientific calculator, using RPN. Port of the X48 project (sources available on github). HP48's "grayscale mode" cannot be emulated.

Visit for a large program collection.

Cool tip: tap the HP's LCD to show/hide a simpler numeric pad !

Now I always have my favorite calculator with me everywhere. found in 22 reviews
Best scientific calculator I have seen in the play store. found in 10 reviews
I used to have this calculator when I to engineering school. found in 11 reviews
Best calc app out there. found in 9 reviews
Thank you for bringing my favourite calculator to my phone. found in 5 reviews
wonderful emulation of HP's outstanding scientific and engineering calculator. found in 7 reviews
tough to use on my old myTouch 3g. found in 2 reviews
Now I just need to learn it 8. found in 1 reviews
Cool app looks and acts like a real 48. found in 11 reviews
Using the old skin with the timely update. found in 6 reviews
Greatest thing since sliced bread. found in 1 reviews
update: great on my GS2 as well. found in 1 reviews
Works perfect on my droidx. found in 1 reviews
Best calculator emulator of the best calculator. found in 4 reviews
Fantastic HP48 Series Calculator Emulator. found in 3 reviews
This one really hits the mark. found in 2 reviews
Blast from the past. found in 3 reviews
My all time favorite calculator on android. found in 3 reviews
One gets to carry the trusty hp everywere. found in 5 reviews
Thanks for the trip down memory lane. found in 3 reviews
multitouch doesn't seem to work. found in 14 reviews
But now on my newsam asung note4 it keeps freezing all the time. found in 2 reviews
Fixed startup crash after update by uninstalling. found in 2 reviews
Fonts for lables are messed up on Dell Streak. found in 2 reviews
Awesome app but the buttons are too small. found in 2 reviews
just bit ugly but works fine. found in 2 reviews
It's nice but could use a few improvements. found in 2 reviews
Having trouble it self closes on latest cyanogen mod 7. found in 2 reviews
but crashes on my Droid if i rotate the display. found in 2 reviews
but when i tried to put in. found in 5 reviews
needs some debugging. found in 1 reviews
Exactly wat I needed. found in 2 reviews
Please give an option to select the old interface. found in 3 reviews
A nicer skin would be great. found in 2 reviews
If only I could figure out how to transfer my programs over. found in 4 reviews
Great calculator app but freezes often. found in 2 reviews
Not working properly anymore on newer versions of android. found in 2 reviews
but constant freezes since Kitcat. found in 1 reviews
Doesn't even begin to work on my Galaxy Note 10. found in 14 reviews
Crashes and freezes samsung galaxy s2. found in 10 reviews
Was forced to remove the battery. found in 4 reviews
Needs bigger buttons and better graphics. found in 2 reviews
Locks up my Galaxy. found in 2 reviews
Crashes on the galaxy s2. found in 2 reviews
Crashes every time on my Droid. found in 2 reviews
rated better for full screen.   rated better for original calculator.  
rated better for rpn calculator.  
"Excellent version of the old HP RPN calculators - and it's free."
"This is the most complete RPN calculator I've ever had."
"Does an excellent job of emulating an RPN calculator."
"This is exactly what I was looking for - a simple RPN calculator."
"This is the best RPN calculator that I have found for android."
"Best RPN calculator out there."
10,865 total
  • I only feel comfortable/confident using RPN calculators.
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