EE, the largest mobile operator in the UK, said users of its Cash on Tap app will shortly be able to make payments on London transport.

Transport for London (TfL) is to launch contactless payments on 16 September. It means EE customers – equipped with the app – will then be able to make contactless payments on DLR (Docklands Light Railway), the capital’s overground networks, and London’s tube.

Cash on Tap has been developed in partnership with MasterCard and is available free on Google Play.

EE says Cash on Tap will be more convenient than the dedicated ‘Oyster’ contactless card currently used in London. Not only is there one less card to worry about, but EE points out that gates may not open if customers have more than one contactless card in their purse or wallet.

“As more and more people benefit from the simplicity, convenience and security that mobile contactless payments offer, it’s rapidly becoming clear that the days of the physical wallet are fast becoming numbered,” said a bullish Gerry McQuade, EE’s CMO.

Before the year is out, EE says Cash on Tap will be compatible with over 500,000 customers’ handsets. Supported Android devices include Samsung Galaxy S5, HTC One and Sony Xperia Z2.

EE customers can already use their phone to pay in more than 300,000 shops across the country, including Marks & Spencer, McDonald’s, Cafè Nero, Pret A Manger and Greggs.