Worried about someone showing up to prom wearing a dress just like yours? Prom App lets you register a dress for your school's prom so that won't happen.Your profile lets you keep track of dresses that you like, and also follow a prom page for your school. If your school's prom isn't on Prom App yet, you can create one yourself! When you have picked a dress you are going to buy, you can register that dress for a prom. Once a dress has been registered, Prom App will make sure no one else registers the same dress for the same prom.