Broadway apps for mobile devices/computers

Im directing a show later in the fall and I'm sitting down to really start putting my ideas/ plans on to paper. I'm a terrible artist, so it can sometimes be hard to communicate to my designers what I want exactly even though I have a very clear vision. This got me to wondering if there are any theatre centered apps? More specifically any apps meant to help creative design? Although I wouldn't mind hearing if anyone knows of some good trivia, game, review round up type applications either. I have the Broadway Challenge app for my iPad. It's somehow connected to BC/EFA. If there aren't any out there someone smarter than I should make one and cash in.