Have you ever lost your iPhone, iPad, or iPod Touch at home and wasted way to much time trying to hunt it down? Well a simple and fun app called Marco Polo is here to help you find it: just yell out "Marco" and your phone will respond "Polo"! It even works when your phone is in sleep or silent mode, and you can adjust the volume of the response to be as loud as you want. You can even customize what you shout and how the app responds (e.g. "Knock Knock - Who's There). Find your phone in a pinch with this great app for only $1 on iOS.