TerraLand 2 – High Quality Photo-Realistic Terrains from Real-World GIS Data

As we are an ArcGIS developer and our app is subscribed and registered for ArcGIS Online Services program, you access Elevation & Satellite Imagery data under our company. More info: https://developers.arcgis.com/en/terms/

Other quotes from ESRI:

As always, if you are really concerned about the usage of specific data in your commercial application, contact the licence holder directly.