Here's how you can download the MouthOff McDonald’s app free for your iPad, iPhone, iPad mini or iPod Touch.
1. Go to the MouthOff McDonald’s app preview page in iTunes (or tap the link on your iOS device to install the app directly).
2. Click the View in iTunes button.
3. Click the Free button to download the app.
4. Sync your iPad, iPhone, iPod Touch or iPad mini with iTunes to install the app.
Here's a description and screenshot:
"Have a little fun with one of our sound-reactive graphical fish mouths. Be Frankie the Fish, a kissy-face puffer fish or whatever suits your taste. Simply choose a mouth and put your phone to your face. Now talk, shout or SING! Or, just hit the music button and get your Fishy-Fishy on with a serenade from your favorite mouth."