In its first version upgrade since its purchase by Trimble Navigation, SketchUp Pro 2013 now includes its own app store, Extension Warehouse, which offers add-on tools built by developers using the software’s open-application programming interface. Apps are available across a wide variety of categories from rendering to 3D printing to animation; more than 150 community-supplied extensions have been created since the store launched in May. Highlights include: Architect Tools, which allows designers working with imported map data to generate buildings and stepped terrains; and CloudUp, which syncs users’ SketchUp to Dropbox, Google Drive, or any other cloud storage. The latest release of SketchUp Pro also features improvements to its LayOut tool and 2D documentation capabilities. SketchUp Pro, which was created by Google and purchased by Trimble in 2013, is a 3D modeling program that can model from CAD, terrain data, photographs, or hand sketches. The software, which costs $590 per seat, is geared toward architects, engineers, general contractors, and building owners. A free version, SketchUp Make, is also available for nonprofessionals.