StoryRobe works much the same way, except that the story is only told verbally and you have the options of uploading the story to YouTube or emailing it to someone. StoryRobe costs only 99 cents. Even if you share your digital story, it will still remain on your mobile device for easy viewing just like StoryKit.
Both of these apps are wonderful for creating alternate means of assessments for students, recording important information, taking verbal notes with pictures, creating literature, and sharing information. Any content area can use this technology. Please check these apps out at the urls below. I give both of these apps a 2 thumbs up!