15C Pro Scientific Calculator App Reviews

It works great and everyone who sees it wants one. I still have my 15C, but use the app more often.

What else can I say?

Emulates my first serious sci cal. RPN rocks!

Works awesome, even better on iPhone 6!

My go to calc app. Used HPs when hand-helds were the tool of choice. This app feels just like my old HP calculators - comfortable..

Using this app on iPhone 6S. Pros: Fully functioning 15C emulator. Cons: Slow calculation speed, small numerical display and disproportional keyboard (compared to actual HP-15 LE calculator and other iPhone emulators). Also, no stack display or additional features (like some other HP C-series emulator apps). Although this doesnt have the refined ergonomic layout of the original, it does seem to duplicate all the functions.