Not all carriers offer the same quality of service. Some just work better in your area than others. But you shouldn’t have to try multiple carriers and go through the hassles of canceling your service to find which one works the best. CarrierCompare is a handy iPhone application that compares the performance of cell networks around you. It is useful when your connection with your current carrier is slow and you want to figure out whether there are better options out there. CarrierCompare makes the process of comparing cellphone plans much easier.