Procreate

Loved by creative professionals and aspiring artists alike, Procreate is the leading creative application made for iPad. Offering hundreds of handmade brushes, a suite of innovative artistic tools, an advanced layer system, and the lightning fast Valkyrie graphics engine, Procreate gives you everything you need to create expressive sketches, rich paintings, gorgeous illustrations and beautiful animations. Work on the couch, on the train, at the beach, or while waiting in line for coffee.

It's a complete art studio you can take anywhere.