Abstract: Systems, devices, software, and methods of the present invention enable users and owners/operators, such as employers, vendors, and other administrators to restrict the accessibility and use of applications residing on mobile and portable user devices, when those user devices are near or within a controlled area, such as non-residential and residential properties, and/or access a controlled network, either locally or remotely. The device management system may impose restrictions on one or more user devices that may include, for example, one or more of disabling applications, preventing applications from being enabled, deleting applications, limiting or preventing applications from being downloaded, and/or performing application inventories on the user device. When the user device is no longer in, on, and/or around their facilities and/or networks, the device management system may remove or impose the restrictions on the user device.