Stardust SDK allows developers to achieve visual positioning at scale, without relying on any hardware (no wifi, beacons or GPS). Leveraging the latest computer vision and deep learning technologies, StardustSDK offers solutions to bring AR at world-scale, without losing accuracy. This unlocks persistent content that sits on the top of the physical world. Built upon Stardust SDK, ARE4 is a real-world social media using your favorite places as canvas for UGC, both on-spot and online, immediately synchronised between both worlds, so you can have the best of real and digital worlds. The app helps you to map your favorite places, paint them in 3D, unleash your creativity, express yourself in new ways, all made easy thanks to this no-code platform. The 3D painting is a persistent overlay, sitting on top of the physical world, where it matters: in the real world. A new way to leave your mark in the world :) Once mapped, your place become a world canvas for online exploration and remote collaboration. You can share a web link to your friends and invite them to collaborate online. Any content created on the online digital twin becomes instantly available in the real world. And vice versa!