The Apple Pencil is a pen for the iPad, which allows you to draw and write on your iPad as with a pen on paper. You can easily draw thin or thick lines by pressing harder or holding the Apple pen at an angle. The Apple Pencil Pro is the most extensive iPad pen. Pinch and double tap the stylus pen to quickly switch tools. Be sure to check which Apple Pencil is suitable for your iPad. Not every Apple Pencil works with every iPad model.