A9CAD is described as 'Computer-aided design needs for many users and can used as alternative to AutoCAD. With A9CAD you can draw shapes such as line, rectangle, circle, poly-line, text and dimension; performing drawing modifications like move, scale, rotate, explode, trim, fillet and mirror; edit' and is an app. There are more than 25 alternatives to A9CAD for a variety of platforms, including Windows, Mac, Linux, Web-based and SaaS apps. The best A9CAD alternative is LibreCAD, which is both free and Open Source. Other great apps like A9CAD are Autodesk AutoCAD, BricsCAD, DraftSight and QCAD.