PackageHelper Assistant app for door-to-door package delivery. Netsyms Technologies The camera is used to scan barcodes. Your location is used to provide proximity alerts and other app features. It is only transmitted when you submit a map calibration. Your location is used to provide proximity alerts and other app features. It is only transmitted when you submit a map calibration. Your location is used to provide proximity alerts and other app features. It is only transmitted when you submit a map calibration.