AutoTRAX DEX is described as 'AutoTRAX Design Express (DEX) is a powerful integrated Electronic Design Application for Electronic Engineers' and is an app in the Education & Reference category. There are more than 25 alternatives to AutoTRAX DEX for Windows, Mac, Linux and Online / Web-based. The best alternative is KiCad, which is both free and Open Source. Other great apps like AutoTRAX DEX are Fritzing (Paid, Open Source), LibrePCB (Free, Open Source), Autodesk EAGLE (Free Personal) and OrCAD (All Products) (Paid).
The gEDA project has produced and continues working on a full GPL'd suite and toolkit of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production.