SketchFactor: A crowdsourced navigation app that shows the relative sketchiness of an area, based on user input and publicly available data sets.In A Sketchy Situation? There’s An App for ThatSketchFactor shows you where to walk and where to avoidAugust 7, 2014 - New York, NY. Today, August 8, SketchFactor launches. A first-of-its-kind navigation app, SketchFactor crowdsources walking directions b