Mouth Face is an app that allows you to place a "mask" on a picture and create a video. While the purpose of a costume party mask is to hide portions of an underlying face, in digital image design, an image mask can be used to reveal portions of an underlying image.
If an image mask is positioned around the mouth, it is easy to place your own mouth on an image and create a video just like you see on those late nite talk shows.
But you can do so much more ... the image mask can be placed around an eye, nose, forehead or even a whole face. If you position an ovoid mask on an image of a wall, you create what we like to call a "wall face."