Technically yWriter is classified as a word processor, with some organizing tools. When I tried it last I was looking for a tool to organize a large world building project. Reading over the feature list I noticed that the author has added a couple new features since I used it last one of which being a storyboard function. it allows one to break your writing into chapters and scenes.  It also gives you tools to track characters. When I tried it, I found it very easy to use but it was lacking some organizational tool that I really needed. I would suggest this for someone that is trying to write their first novel and doesn't want to spend the money on something else.