Drawsum

Drawsum is a massive and collaborative canvas where people can express their creativity through art. All users who download and open the app can leave their mark on this 1640-megapixel canvas, so long as they abide by some basic rules of respect. These rules basically state that you can't destroy other people's work or create inappropriate content. To make sure users comply by the rules, the app has some moderators in charge of approving (or not) any change made on the canvas.

One of the most addictive things about Drawsum is that the better you draw, the more tools you have available to use. That said, you can only draw. You can't upload content from your Android or take photos. The only thing you can do is use your finger (or a stylus) to create original drawings.

Drawsum is a lovely project where you can currently find some proper works of art. A wonderful idea that will hopefully stand the test of time.