Great competitive tools to isolate the business and audience; your personal brand segments.  Simple technology – place a pin at the midpoint and define the radius in feet, miles, or general distance. Isolate the competition by location and begin advertising your client. This tactic is heavily used and worth every dollar. The technology uses GPS coordinates to define the area and APP data to locate the device. No personally identifiable information just device information. The data can be mapped back to the client if the property line of your advertiser was crossed by the ad recipient.