TigerCad is described as 'Ideal for garden design, mechanical engineering drawings, electrical / electronic, building and room plans, and general diagramming. Output in PDF format for the web. Copy and paste graphics. Create standard symbols to re-use. Scale, mirror and rotate' and is an app. There are more than 10 alternatives to TigerCad for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best TigerCad alternative is LibreCAD, which is both free and Open Source. Other great apps like TigerCad are QCAD, progeCAD Smart, JTS IntelliCAD Software and Archimedes CAD.