DoubleCAD XT is described as 'free AutoCAD LT work-alike' and is an app in the Photos & Graphics category. There are more than 50 alternatives to DoubleCAD XT for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and iPad. The best alternative is LibreCAD, which is both free and Open Source. Other great apps like DoubleCAD XT are Autodesk AutoCAD (Paid), SOLIDWORKS (Paid), DraftSight (Paid) and pCon.planner (Free).
Industrial strength, user-friendly 2D/3D CAD package. Specialised Toolkits to enhance your productivity. Control Centre allows easy access to symbols, hatching, text, dimension and line styles. Enhanced bitmap capability can load 300 large images.
Formerly Vellum Solids, Xenon™ is an associative 3D modeling software for product design and development that's easy to use. It offers history-based wireframe, solid and surface modeling with precision drawings, renderings and animation.
CAD X11® Free include 3-D wireframe modeling, surfacing, DXF import, 2-D drafting with ANSI, ISO and JIS dimensioning, geometric tolerancing, TrueType Font support, undo/redo, dynamic rotations, multiple views, data verification, geometric analysis, crosshatching, Windows...
2D/3D CAD provides a high degree of compatibility with the AutoCAD command set, as well as AutoLISP and ADS. That means you can get to work immediately using the AutoCAD files, commands and applications you rely on .