Sketch - Draw a simple

“Sketch”, allows you to draw easily, even those who can not draw very well thanks to Sketch, you can create beautiful designs.
There are 11 different pencils, you can change color and even the background.
You can draw all over, portraits, landscapes, graphics, cartoons and more, once your design you can download it as an image. If your work takes many hours, do not worry, you can also disconnect all, the design is saved and you can resume it whenever you want.
Before you can draw the user will have to log in via Facebook, I chose Facebook because it is the most common one, but I will add in the future also other social and recording via email. You can use the script also offline, changing some code and renaming the index as html.
You can use this script even on mobile devices.