The beautiful art you create looks even better on a Retina Display. Sketchbook Pro’s learning curve is not as steep as programs like Adobe Illustrator or Adobe Photoshop. Choose from different brushes and color textures to simulate water color, oil paint, and pencil sketches. The app also works with Wacom’s pen tablets you can attach to your Mac, such as the Bamboo and Intuos. iCloud integration allows users to access canvases from your iPad or iPhone.