Drawing Apps Don't Have to be Expensive
There are a lot of drawing apps available for the Mac. Many will cost you hundreds of dollars and in most cases those apps are worth every penny. However, those expensive apps often have more features than the average user needs. For a lot less money you can have some great drawing apps on your Mac. Here are a few suggestions.
The SketchBook brand of apps by Autodesk are fantastic and available in the Mac App Store (see link in references). Currently, Autodesk has three versions available. You can get SketchBook Express which is completely free and fantastic. It is a fully functional application that has some fantastic drawing tools and features. You have all the basic tools like pencils, marker, airbrush, pen, and more. You also have the ability to work in layers, which doesn't often come in a free program.
If SketchBook Express isn't enough for your needs you can purchase SketchBook Pro for $59.99 and get a lot more features. When you outgrow the features of Sketchbook Express it is time to move up to SketchBook Pro. You have more tools at your disposal and more customizable options.
If you want a taste of just drawing with Markers on your computer you can try SketchBook Copic Edition. This is also completely free. It is similar to the other two apps but it is markers only.
As a side note SketchBook apps are also available for the iPad and iPhone.
I've mentioned Artrage before at Brighthub and it is worth mentioning again in this context. With prices starting at the FREE (yes FREE) Starter Edition up to the $80 Studio Pro edition you can't go wrong with Artrage if you want natural media drawing and painting on the Mac. Each version adds features to the package and I have said Artrage is the cheapest way to get Painter type of software on your Mac. It is that good.
The nice thing about ArtRage is that it has features for all ages. There are stencils and glitter paints for the young at heart and oils and pastels for the more serious artist. A favorite feature of my students is the ability to import a photo as a base or source. You can then paint that photo and have Artrage pick up the colors from the original photo.
I can't say enough about Artrage and highly recommend it. While the Sketchbook series is in the Mac App Store, ArtRage is not. Find the link to ArtRage below in References.