What app did Jim Carrey have on Regis and Kelly?

On the show regis and kelly today... Jim Carrey was on. He had a iphone and pulled out and had this app that he pulled up and was scrolling through like mouths and a big nose and stuff. He claimed it provided hours of entertainment. It had a happy face, a mad face a big nose and he said it had more too, It was really funny, and i want to know what app it is. So, if you know tell me!!!