CityOS Collect is a reliable field-agent app to generate large-scale urban geospatial data. Revenue enhancement module is provided for mapping buildings and premises with high accuracy for your city using a modular method. Data is gathered both spatially and non-spatially.The app can be used by several crew members for ground-truthing with an efficient field-to-office workflow. The tool is adaptable, having template forms that may be adjusted to meet specific needs. The app allows you to transmit data from the field to a centralised place in real time, where an administrator can review the daily records. Users in the office can provide feedback and approve field data using the workflow engine.