I haven't succeeded at games. I decided to focus on a product right now and try to get to some good publisher to help me with everything else. I'm working on interactive story for kids. Do you know any publishers for apps like that?
When you say interactive story, do you mean like Alice for the iPad or more like Device 6? At my old company we use to use this program to make digital magazines, I think it might be of use to you if you are looking for basic interactions. It's called Origami Engine. http://origamiengine.com/ If you're thinking more of a text-based adventure with branching narratives, you can check out Choice of Games https://www.choiceofgames.com/ One of my friends recently made a game for them and I think they're always looking for writers. Hope that helps and good luck!