Vertex Solutions builds XR flight simulators and apps with Cesium for Unreal and Cesium ion, including more than 200 for the PTT program. The flight sims access Cesium World Terrain and Bing Maps Aerial imagery in Cesium ion, where they are tiled into 3D Tiles and streamed to Unreal Engine for use on Windows machines and Android devices, enabling pilots to better understand their aircraft and operational environments.