Draft it is described as 'Draft It V4 is a powerful, easy to use 2D CAD Software package that is completely free to use. No restrictions means you're free to create, save and print your work with our unlimited free version' and is an app in the Photos & Graphics category. There are more than 50 alternatives to Draft it for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and iPhone. The best alternative is SketchUp, which is free. Other great apps like Draft it are LibreCAD (Free, Open Source), Autodesk AutoCAD (Paid), SOLIDWORKS (Paid) and OpenSCAD (Free, Open Source).
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.
SpaceClaim Engineer is the world’s fastest and most innovative 3D direct modeler. SpaceClaim Engineer brings 3D solid modeling to the desktops of engineers and analysts who work in 3D, with a simplicity and low TCO (Total Cost of Ownership) never seen before in CAD.