Google is using crude sketches hand-drawn by humans to teach computers how to draw on their own, according to a technical paper the company released on April 11.

You can draw on your iPhone in the Photos or Notes app. In the Photos app, you can draw over existing photos with the Markup tool, which allows you to choose different colors and drawing styles.

Step 2: Create Your Doodle: a. Use the Stable Doodle tools to draw from scratch by clicking the pencil icon in the top left corner of the screen. b. Create a drawing of anything you like.