Vidify is the easiest way to make fully edited music videos on the iPhone. Simply pick some video clips from your camera roll, select a soundtrack from our music library or your ipod and in seconds Vidify automatically edits a movie for you set to the soundtrack you chose. It’s super easy and for users who want more control there are advanced settings that let you change the length of the video(up to the length of the song), change the edit speed and add cross fades and effects.
This app usually retails for $1.99/£1.49 but it is currently free in the US and UK App stores. Click here to download.