MakerSCAD is described as 'web-based parametric 3D design software with a block-based programming language to create objects for 3D printing, animations, games and websites' and is an app in the Photos & Graphics category. There are more than 100 alternatives to MakerSCAD 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 MakerSCAD are SketchUp (Freemium), LibreCAD (Free, Open Source), Autodesk AutoCAD (Paid) and SOLIDWORKS (Paid).
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.