Google ARCore - Google Augmented Reality SDK
Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
8th Wall - Cross-Platform Mobile AR
Chatrandom - Chatrandom provides medium to users for having chat at random with different users around the globe.
Wikitude SDK - Wikitude’s all-in-one AR SDK combines 3D tracking technology (SLAM), image recognition and tracking, as well as geo-location for apps.
LuckyCrush - Live random video chat