Food on-the-go retailer Greggs has launched its new Greggs Rewards mobile payment app across its 1,700 store estate.

It works by the customer tapping the app to generate a Quick Response (QR) code which can either be scanned or entered into a chip & pin machine.

The app, which uses PayPal, allows customers to pay for items quickly on their smartphone and offers rewards such as a free Greggs breakfast and a birthday treat once an account is opened.

Customers can top up their account from £5- £50 using their credit or debit card.

Roger Whiteside, Greggs Chief Executive said that a “simple and rewarding” scheme is something that consumers want with their on-the-go lifestyles and added that Greggs would continued to introduce and develop rewards in forthcoming months.

A spokesman said it would allow Greggs to enrich their customer experience by understanding individual shopper behaviour.

Rob Harper, Head of Retail Services at PayPal UK said: “We predict that by 2016 you won‘t need your wallet to pay on the UK high street – your smartphone will be enough.”

Greggs Rewards was developed by digital transaction firm Eagle Eye.