With which applications is MeetUp compatible?

MeetUp video and audio will work with any application that supports the USB Video Class (UVC) standard, which is pretty much any video conferencing application.  Once the device is recognized by your operating system, the application will in turn automatically recognize the camera, microphone and speaker from the MeetUp.  
 
A partial list of  applications that support MeetUp include Skype for Business, Microsoft Teams, Zoom, Google Meet, and others.