OmniGraffle 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.
OmniGraffle 7.15 is focused on improving compatibility with Visio.
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