Dear all, I am a marketing expert, and I think you really need to get on YouTube and watch a load of Steve Jobs presentations. Instead of giving a load of advice here but no one demonstrates it better than Jobs. I can say that as a potential user, your description is too complicated. Put everything simply and succinctly. Imagine you can only write 3 paragraphs and have only 140 characters per paragraph. That will make users really understand what it's about. And the fact that its £1.49 you need to do it more than most developers.
