Hrm, that app seems to be shit, measuring only by its licensing system. But I wonder about an app that can count things automatically, plus maybe also work out

Hrm, that app seems to be shit, measuring only by its licensing system. But I wonder about an app that can count things automatically, plus maybe also work out counts of 3D shapes by counting visible things and making estimates about packing ratios. A sort of "how many M&Ms are in the jar calculator" app. That'd be neat (and would ruin a fun game).