If you do a lot of diagramming, OmniGraffle is a must-buy. Contrary to it’s whimsical name, OmniGraffle is neither a toy, nor a graphing tool (although OmniGraphSketcher can handle the latter). But what OmniGraffle does do well is charts. Whether it’s organizational charts, flowcharts, interface mockups, or even page layouts, OmniGraffle allows you to quickly sketch out ideas on your iPad.
The Omni Group has been a major player in the productivity market on
Mac for many years, and even made a launch-day move on the iPhone App
Store in 2008 with its award-winning OmniFocus task management app. But
for Apple's next portable device, Omni has even grander plans: the
company announced in January that it will bring all five of its core
productivity and design apps--OmniGraffle, OmniPlan, OmniOutliner,
OmniGraphSketcher, and the aforementioned OmniFocus--to the iPad in