The platform, developed by not-for-profit company UK RadioPlayer whose founding partners are the BBC, Global Radio, GMG Radio, Absolute Radio and the RadioCentre, launched in March in an attempt to boost listening via the internet.

At launch, RadioPlayer said around 4.5m people in the UK listen to radio online every week and, with RadioPlayer replacing the participating stations' own online players, it was expected todebut with around 3m listeners.

This, however, is the first snapshot of how RadioPlayer has actually ...