ARCore Cloud Anchors

ARCore is a platform for building augmented reality apps on Android. Cloud Anchors gives you the ability to create AR apps that share a common frame-of-reference, enabling multiple users to place virtual content in the same real world location that can be seen on different devices in the same position and orientation relative to the environment.

Source: codelabs.developers.google.com/codelabs/arcore-cloud-anchors/index.html?index=../../io2018