Ubisoft's Just Dance 3 promotional app for iOS (and, later, Android) isn't exactly the same as Just Dance 3 -- but it does encourage you to do the thing in the title of the game. In fact, rather than a graded dance simulator, the app is sort of a VidRhythm thing, speeding up and recutting your video footage into an automatically generated music video to one of three songs from the game.

You can see some examples, uploaded from the app, at the Autodance YouTube page. We're not convinced it's a thing we'd want to try more than once, but we don't even have that opportunity just yet -- the app isn't available in the American App Store as of now.