What Car? has launched a free car valuation application powered by data from dealers, private sales, auctions and classified advertisements across the UK.

The app has been developed by Grapple Mobile and will be available on the iPhone, Android, Nokia and Windows smartphones.

The app breaks down valuations by dealer price, private price, part-exchange, and trade price.

It also features a “find the nearest dealer” function based on current location using GPS, or by postcode.