Gather Town - Spatial video-chat worlds for work and play
Callmama - Get cheap international calling, international virtual number, Call Mama Gives an added advantage to send message and make calls to non-user of Callmama App.
VRChat - Create and play in virtual worlds with others
CallHippo - Easy to use Phone System with World-Class Support
Topia - Create amazing wallpapers for your iPhone
KrispCall - Virtual cloud phone system for business