libonvif (onvif-tools) is described as 'A client side implementation of the ONVIF specification for Linux, Mac and Windows. Included are two tools for communicating with cameras, a command line program, onvif-util, and a program with a Graphical User Interface, onvi-gui' and is an app. There are three alternatives to libonvif (onvif-tools) for Linux and Windows. The best libonvif (onvif-tools) alternative is OnvifDeviceManager, which is both free and Open Source. Other great apps like libonvif (onvif-tools) are ONVIF Device Manager and ONVIFViewer.