This is a silly app, spun off from a silly program that I like a lot. The Crazy Talk App allows you to take an Actor, record some dialog, and slave them together for lip syncing. Yes, I know, lots of apps do that. But this is the only one I know that gives you some slider bars that allow you to create and edit animated facial expressions for the resulting video. They have 2 App versions, one free and the other 99 cents. It does have a bit of a learning curve, and to take advantage of everything you will need to get the actual Crazy Talk Program, so you can do stuff like create your own Actors.