ArCADia PLUS 10 is described as 'A traditional CAD software with added functionality to automate some features. Automatic insertion of walls, room formation at closing of walls, automatic lists, DWG, IFC, 3D, collision analysis, merging, automatic cross section and much more' and is an app in the Photos & Graphics category. There are more than 100 alternatives to ArCADia PLUS 10 for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and iPad. The best alternative is FreeCAD, which is both free and Open Source. Other great apps like ArCADia PLUS 10 are SketchUp (Freemium), LibreCAD (Free, Open Source), Autodesk AutoCAD (Paid) and SOLIDWORKS (Paid).
Free CAD software for your DWG and DXF files: A new 2D CAD product that provides professional CAD users, with a better way to read, write and share DWG files. Portable 2D CAD application for Windows with DWG/DXF support
iPocket Draw is a vector drawing program comprehensive (CAD 2D), which offers to you total control over your drawing. Of course all the simple drawing tools are available: line, rectangle, oval, arc, polygon, text.
gCAD3D is a 3D CAD CAM application that features an integrated 3D OpenGL viewer, a program interpreter for geometry and NC-commands in 3D, an integrated NC-processor, and a programming interface for user programs.