Adobe Photoshop Sketch: Perfect for artists that want to sketch and paint, includes tools like Graphite, Watercolor, Pencils and much more.Adobe Illustrator Draw: Almost like the Windows and Mac version of Adobe Illustrator, but you can draw anywhere! Great for vector artists and illustrators that like to draw outdoors.Most of these are also available for Android users! The Best Free Drawing Software for the iPad This is lesser known than for example Blender, so it might be harder to find bigger and better resources to learn it, so do take that into consideration.
