ONVIFViewer is described as 'The goal of this project is to replace the proprietary app that was needed to configure and view my IP camera. The ONVIF protocol can be used to view and configure many types of camera's and is a open standard that can be implemented using standard SOAP libraries' and is an app. There are seven alternatives to ONVIFViewer for a variety of platforms, including Linux, Windows, Mac, Android and iPhone apps. The best ONVIFViewer alternative is ZoneMinder, which is both free and Open Source. Other great apps like ONVIFViewer are OnvifDeviceManager, OpenCVR, xeoma and libonvif (onvif-tools).