Disclosed is a system for collecting data and mapping wireless network coverage in a building such as a retail store. A mobile computing device is used by an employee to collect data captures and wireless coverage indicators in the retail store. The wireless coverage indicator includes data on the status of wireless network coverage in the location where the data capture was collected. The data capture and the wireless coverage indicators are wirelessly transmitted to a utility for mapping a building when a wireless network is available. If no wireless network is available, the data is stored in the mobile computing device until a wireless network is available. The utility for mapping a building uses information in the data capture to determine the location where the data capture was collected, and maps the data in the wireless coverage indicator to the location on a map of the building.