I am an architect and have relied on my Construction Master pro calculator for years in practice. Last year I was about to buy a new one to replace my old one that wasnt functioning properly. I went to the Construction Master Pro website to compare various models and noticed they had one for the iPhone. Which was substantially cheaper than what I was about to pay for a one of the newer models, I might add. I immediately went to iTunes and downloaded it. It has been great having it available whenever I needed it.
Now I am very pleased to see it works natively with the iPad as well. A must have app for professionals and anyone in the construction industry that has to deal with quantities, dimensions, and conversions, etc.
Construction Master Pro, v1.2.0