RDV - free opensource social realtime audio and video

RDV-familyVideo calling app for calls between family and friends. Cross platform (android, ios, mac, windows) - calls are started via SMS or email.
RDV-watchAudio calling app for calls between family and friends. Cross platform (android, ios, mac, windows) Chat whilst you all watch a video.
RDV-zoneAudio calling app for bookclub meetups. Cross platform (android, ios, mac, windows) High quality audio chat between 10 bookclub members.
RDV-toolsVideo calling app for remote help. Cross platform (android, ios, mac, windows) Video call started by SMS - allows remote party see what you are seeing and guide you through a process
RDV-yogaAn audio calling app for guided meditation. Cross platform (android, ios, mac, windows) High quality audio chat between 1 teacher and upto 9 students

See our Github for source code