by Computer Systems Odessa ConceptDraw is a comprehensive business and technical diagramming software with advanced drawing tools, task-specific wizards and extensive libraries of ready-made shapes. Supports MS Visio diagrams. Mac OS X and Windows versions
by Gadwin Systems, Inc. Diagram Studio is a tool for creating flowcharts, business and technical diagrams. Draw objects, various shapes and link them together. The program features user-controlled points of connection, color shadows, graphics import and export, curves.
