ArchiCAD is described as 'Offers computer aided solutions for handling all common aspects of aesthetics and engineering during the whole design process of the built environment — buildings, interiors, urban areas, etc' and is a 3D Modeler in the photos & graphics category. There are more than 50 alternatives to ArchiCAD for a variety of platforms, including Windows, Mac, Web-based, Linux and iPad apps. The best ArchiCAD alternative is FreeCAD, which is both free and Open Source. Other great apps like ArchiCAD are Sweet Home 3D, SketchUp, Autodesk AutoCAD and Dune 3D.