OmniGraffle Pro helps you draw beautiful diagrams, family trees, flow charts, org charts, layouts, and (mathematically speaking) any other directed or non-directed graphs. We've had people use Graffle to plan plotlines for a story, make an overview of an operating system, show the evolution of computers, and even show how diseases can spread in a closed population.

If you want to organize your thoughts, your projects, or even your friends graphically, using boxes and lines, OmniGraffle is your tool.

https://www.virustotal.com/gui/file/020384c45962c02527d4a833f39920b402ffc0a22fab1b6b0f0eb5a5a7ee7e59?nocache=1