Droid48

Arnaud Brochard

About this app

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 www.hpcalc.org for a large program collection.

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

Ratings and reviews

Keys are much more responsive than Emu48, but this emulator fails to save the state of the machine. A Google search indicates this may have been intentional, requiring the paid version in order to save the state of the emulator. Fair enough, but I see no play store option for a paid version... super annoying to not be able to save my custom unit conversions. All I really hold to be the single feature of my HP48GX is its unit conversion stuff, all else I do on a PC now....

Look, this is the best HP emulator out there. It's free, it works great on modern Android. With some practice, you can store your equations and other stuff. It's a fully workable solution to the "I didn't bring my HP" problem. No ads. No tracking or other BS. Just plain works. Free. Wish developer would comment on updates.

The only calc app I use, but it no longer saves memory. It always used to. I'm not sure when it stopped saving. Just noticed it today and I'm really bummed. I suspect there is a permissions issue somewhere. Google recently changed some requirements for apps and maybe that has bitten Droid48. Hopefully the developer will see this and comment. I'd give it 5 stars if it worked again.