You can draw on an iPad with an Apple Pencil on the Procreate app, which you can use to sketch, paint, and illustrate.

Illustrator Fatemeh Haghnejad reveals how she uses Procreate to create a detailed illustration.

In particular, Procreate’s facility with digital photographs allowed me to analyze shapes of things I wanted to draw. I’d take a photo of something, put it in Procreate and then I’d trace on ...