Changing the default units for calculating area

[CindyRendl]

When I collect a new polygon the Collector App automatically displays the area. I've attached  a picture where it is in square feet (see the red arrow). I was wondering if there is an easy way to change the units to something else like acres. I know that you can use the measuring tool, but it would be nice if you can get the area in the units you want by just creating the polygon.

Thanks!

[DeniseKing]

Tap the measure results to open the units' drop-down list and select the units you want displayed to view the measurement in different units.

documented in Help here, Guided tour—Collector for ArcGIS | ArcGIS