Air Sketch Free
Link: Air Sketch Free
This is considered a utility but I’m categorizing it as as an entertainment app. With the free version of this app you can project written messages or doodles via your web browser(all in black). With all of the reviews in the app store regarding this one you either love or hate it. It’s fun for charades when friends come over.
*please note that although I have not purchased the upgraded version it’s all the rave in the app store, allowing you to dictate images and the function of the undo/redo button