Lines move – MeasureKit - AR Ruler Tape Review

The measurement line almost never stays at the starting point no matter what I do. I honestly have no idea why the reviews are so positive. I thought these problems would not be so severe once I upgraded to the iPhone X, but it seems the hardware had nothing to do with the problem as I noticed absolutely no difference in quality.
Review by a guy who reviews stuff on MeasureKit - AR Ruler Tape.