Finding the perfect foundation shade in the drugstore is like spinning a roulette wheel in Vegas — it's all luck. But with this L'Oréal app, you can take some of the guesswork out of the process. MatchMaker by True Match (free) finds your undertone, your exact foundation match, and the closest drugstore. But the best part is you get a celebrity skin look-alike. Are you a J Lo or a Liya Kebede?