This season, Conde Nast and the CFDA hosted its first-ever "Decoded Fashion" hackathon. Over 78 teams of a total of 550 hackers were challenged to develop the best fashion app that supports the growth of American Fashion as a global industry. The finalists were announced last week, and the five teams will have the chance to show off their ideas at Mercedes Benz Fashion Week tomorrow. Before it all goes down, check out the five apps that are left in the competition.

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