How to get new Procreate brushes and add them to the iPad app

You can add brushes to Procreate by downloading .brush files onto your iPad, and then "sharing" them to Procreate.

How to draw on an iPad using the Procreate digital illustration app

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

Procreate 5 arrives with Photoshop brush import, Animation Assist, and CMYK mode

Procreate 5, Savage Interactive’s newest update for the iOS painting and illustration app, is now available. The free update brings long-awaited features such as Photoshop (ABR) brush import, custom ...