I am looking for a good drawing app for ipad... that's simple to use but not for kids. I want to make backgrounds and have lots of tools to pick from. Thanks in advance you guys!
SketchBook Pro worth a try, though it's not free, there's a wide range of digital pencils, pens, markers, and airbrushes to choose from, all accessed via a simple but intuitive UI that lets you pin toolbars to the screen for easy access.