Does not work

I bought this app. I took a tape measure and I used the app to compare and the results were not even close... Something that was 51" came out at 44" and my truck which is 63" came out at 52". I was really hoping this would work as I need an app for my work to measure tree lines, but the fact is it does not and I tossed away my money on it....

Taz56 about Point & Measure, v2.3.3