Inaccurate measurements on iPhone XR – Ruler App + AR Tape Measure Review

I was just looking to use the on-screen ruler to make some rough measurements of a few small items, and the values are pretty far off from accurate. Measuring a 70mm object gave me a result of -79.6mm, which is off by almost an entire centimeter. Didn’t even bother with the AR features if the on-screen doesn’t work.
Review by TylerCr on Ruler App + AR Tape Measure.