10 iOS Brainstorming Apps to Organize Your Ideas
OmniGraffle 2 turns your iPad or iPhone into a canvas to quickly create diagrams, process charts, page layouts, website wireframes or any number of other designs. Using simple multi-touch gestures, users can draw shapes, drag in objects, and style everything until it's just right. The app also keeps lines connected to shapes when they are moved, giving users plenty of flexibility to get ideas down.
Requires: iOS 9.0 or later Compatibility: iPhone, iPad and iPod touch Cost: $49.99 – also offers in-app purchases