Carphone Warehouse and RootMetrics have teamed up to ensure customers are no longer in the dark when making a choice about which network provider to go with.

The UK’s largest independent mobile phone retailer will use RootMetrics’s CoverageMap App to offer customers accurate information on how each of the major network operators are performing in their area. This will help customers better choose an appropriate plan.

The app combines scientific tests and crowd-sourced samples to measure network coverage, data speeds and call success and failure rates for major operators across UK cities and towns.

Graham Stapleton, CEO at Carphone Warehouse for UK and Ireland, commented: "We are extremely proud of our reputation as helping customers to select the perfect deal for them. By working with RootMetrics we are taking affirmative action to give our customers smart comparison advice on their network options so that they get the most for their money."

Bill Moore, CEO and President, RootMetrics, said: "This is an important alliance that plays to both companies’ strengths. With mobile phone contracts lasting anywhere up to 24 months, choosing the right provider cannot be taken lightly. RootMetrics casts an independent light on the true mobile performance of the UK networks, and, by providing our data directly to Carphone Warehouse customers on the spot, they will be able to make more informed decisions on their mobile provider."