Leveraging data from location-enabled apps over 1B mobile devices, we target and retarget consumers based on current location, location history, offline purchase data, devices, and content. When a target enters our geofenced area, we identify that mobile device and deliver targeted advertising on that device for up to thirteen months, using geofencing and retargeting. This technique is precise down to four feet and is privacy compliant - we do not collect PII, but rather target on an anonymous basis.