Republic wireless is a prepaid provider that has some pretty cool phones on offer. Unlike other providers that use cellular towers and data for communications, Republic uses WiFi where available for Internet and makes use of VoIP software for making calls. The phones still have a basic access to Sprint’s network as a fail over measure, so as you can imagine the phones primarily work better in large metropolitan areas where open WiFi networks are numerous. Their service has been criticized as offering nothing more than a VoIP phone, but even if this is true, there is no one else offering this hybrid service at a cheap cost.