Instructions: Tap to drop a pin. Change a pin's location by tapping and holding the pin, then dragging it to a new location. The perimeter and area will respond dynamically. Use Clear and Undo to make edits. Search for a place with the search bar. Accessing your current location is not available in this app.

Statement on accuracy: A careful measurement's error is 1.0 to 3.0% for area and 0.1% to 0.5% in perimeter. This is an Apple Maps system, and the max zoom is not as high as a Google Maps system, thus lower accuracy. These errors numbers were found by measuring a NFL football field, like Paul Brown Stadium in Cincinnati, OH. The regulation length with end zones is 109.728 meters, the width is 48.758 meters, and the area is 5351 square meters, or 1.32 acres.

Q: When I try to complete an enclosed perimeter or area shape, I cannot place the last marker near my first marker. How is this done?

A: Drop the marker as close as the map allows you to. This will involve trial-and-error with the Undo button. Pick up this last-dropped marker by tapping and holding it, then dragging it on top of the first marker you dropped. You will have a near-perfect match-up.

Last Updated: 05 April 2019