Best way to get into app development?

You will need to learn how to code to be able to do this. If your dead set on learning to code, you can search for tutorials online and that should give you the basics. While you are doing that you can fool around with the SDK and start doing simple programming tasks. If the idea of this is because you want to make money, I would say look elsewhere, because learning to code isn't really a task that you can complete in a couple weeks. Becoming a great programmer can take years. If you want to do it just to learn, then I say go for it!