It’s really good at tracing. So you can take a picture of something (or download an illustration for personal use) and trace it. I can’t draw to save my life and Adobe Capture has been fantastic for “drawing” for me.
Nope! Just set up an Adobe account. I used it on my Android phone before I switched to iPhone. It’s a free app in the officia app store put out by Adobe. They have a whole suite of light versions including an Illustrator-esque Draw app.