You can create unlimited geofences around locations that are likely to receive foot traffic from your target customers. You can layer on frequency, IDFA lists and IP targets. Add geography and 3rd-party data segments. Reporting breakdowns include device/domain/app, geofence and ad campaigns. These metrics show exactly how effective your ads were. Take a look at our introduction to programmatic advertising, or dive into our location methodology. Maximum precision can be achieved in as little as 30 seconds after an app is launched and a webpage is rendered. Data entering the ecosystem in less than 16 seconds can lead to inaccurate coordinate samplings that could cause problems for your campaign. The clear line of sight and cellular signal are crucial for GPS signals. The interference caused by dense buildings, concrete, and "Hive" blocking can cause interference to devices. (I.E. Stadions, Downtown skyscrapers and Subway stations.