Houseparty - Brining empathy to online communication.
Booyah - Video chat with up to 12 friends at the same time.
Slack - A messaging app for teams who see through the Earth!
Airtime - Hang out with group video, share music & videos
Heaps - Tinder with your friends. Party in a group.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.