This easy to use and fun app contains color picker with so many shades (also having option for generating random colors), different brushes to use giving different effects of chalk, 3-D ,etc and with auto-smooth feature.
“Switch” button in option bar contains the feature of switching from touch draw to motion draw. All you have to do is just touch at any point of your screen and start moving your phone in the direction you want to draw, without removing your finger from the point where you started.
So, just draw , move it and make it, have fun! :)