The Entrepreneur Who Will Change Your Mobile Phone Bill Republic Wireless is a $19-per-month voice, text and data service that relies on Wi-Fi as its primary network.

David Morken admits that the promise he made to reward his kids with iPhones if they brought home straight A's was no stroke of genius. But the business concept inspired by the ensuing $1,000-plus phone bills may well turn out to be.

Launched nationally in December 2012, Morken's brainchild, Republic Wireless, is a $19-per-month voice, text and data service that relies on Wi-Fi as its primary network. When Wi-Fi isn't accessible--roughly 40 percent of the time for Republic customers, according to Morken--calls automatically bounce to Sprint's 3G cellular network.

The pillar of the low-cost Republic model is a solid but no-frills Android handset, the Motorola Defy XT, which allows Republic to offer a low-cost, contract-free wireless service package with unlimited voice, data and texting after paying an initial $249 for the phone.