I have tried Storyist and like it better than competing software like scrivener but its high price is keeping me from buying it. Scrivener is priced at $40 and although Storyist's features are improved in comparison, Scrivener does have a nice full screen mode. Unless you add features such as full screen mode or a timeline, I think that $20 more is too much to charge for Character/Setting/Plot sheets. You should at least offer an educational discount for teachers and students.