Dont waste your money on this app. You will get better information by doing a Google search, or checking out other iPhone apps that have information about Moon phases. This app has only two screens -- one showing a very nice colour photo of the moon (photo, or a mock-up?), the other showing an extremely brief statement like "The moon is currently waxing crescent in Libra" and a count-down of how many days and hours until the next full moon.