Sketchup, marketed officially as Trimble SketchUp, is a 3D modeling program for applications such as architectural, civil and mechanical engineering, film, and video game design. A freeware version, Sketchup Make, and a paid version with additional functionality, Sketchup Pro, are available. It was launched in 2000 but became free when Google took over in 2006. In April 2012, Google announced that they will sell SketchUp to Trimble, a company best known for GPS location services. SketchUp is the upload and download, or input and output tool for the 3D Warehouse.