Constantly crashes. Can't change units – DISTO™ sketch Review

If the app would stop crashing maybe it would get a better rating. Maybe not. Can't select unit type; fixed to metric only for manually entering and actually converts measurements taken in SAE to metric in the measurement details. Poor outing. Very weak as the app was the main driver of buying a so-called Smart Disto.
Review by Bee-Ten on DISTO™ sketch.