Not the same
I have a handheld that I have used for years. I should have looked at this screen more closely before I downloaded this. We constantly have to convert inches to millimeters and my handheld has a button for both mm and cm. This one does not so just pay attention to what type of calculation you need to do if you are used to using the original. Otherwise it looks like a good unit for most other things.
Mombo427 about
Construction Master Pro Calc, v1.1.1