Should have read the reviews
This app is fun to mess around with, but has no real professional use. I used it to try and measure siding and gutters on a house, and not only did it take me over an hour to get photos that were close to right, The measurements were still off substantially. I imagine that, as technology increases, the accuracy will to. I read a review from over a year ago stating that having to center the camera with shaky hands is too hard. They still haven't addressed this issue. It would he more useable if the marker would place where your finger taps. I am using the app on an Iphone 11. This app is not worth the $2.99 and I regret making the purchase.