iBooth doesn't need a Help file, as it works like the native photo app of the iPhone, but it comes with serious improvements. We especially liked the real-time effects, such as Kaleidoscope, Twirl, Squeeze, or Sepia, which you can apply before you take the photo.
If it's a story you want to tell, then iBooth is a great tool to have. PhotoBooth users may already know a couple effects, but the app provides much more, making storytelling very easy. There are certain effects that you can use only if you are willing to go Pro, but we found the options in the free version to be more than adequate.
The bottom line is that if you like to take pictures and post or share your images, this little app can help you tell a story and express your mood. We found that iBooth makes photography more fun, and it's appropriate for any-level user.