Marco polo app gives you the clue to locate your phone. While using the app to find the hidden phone you need to shout ‘Marco!’ and the device will respond ‘Polo!’ so you know where the phone is. The app allows you to customize and you can yell whatever you want. The app was created by Matt Wiechec, a designer and developer based in Toronto. “In those moments where we have all lost our phones to the sofa cushions, or left them on the coffee table, or in the bathroom, we now have a fun way to find them again,” Wiechec said. “It’s like playing tag with your phone, just walk around shouting Marco! and your phone will ring back Polo! In another room,” he added.