"Santa Anywhere requires Google ARCore Preview 2 and a compatible Android device. ARCore Preview is experimental software not supported by all devices." More at https://developers.google.com/ar/develop/unity/getting-started#prepare-device
Santa Anywhere is an Augmented Reality app that let's you use your phone's camera to let Santa Clause appear on any flat surface. Let your friends and family pose with him, add a holiday card and message and share it on social media.