Our app uses the Apple Maps standard map as the basemap. If your area is not covered well by that you can try to change the basemap type in the Map Control pullout slider (bottom pullout on the left) to see another basemap. You can see the streets version which might help if your area is occluded by clouds or the other "satellite" view that we use to cache up maps for offline operation. Sometimes that shows a different level of detail.
Having an alternate means to input the survey area boundaries has been frequently requested and is in the works. We are looking into adding the Google Maps version as a basemap too.