Image: Dominos Pizza Image: Dominos Pizza

Domino's Pizza has described 2015 as "excellent" after reporting a rise in profits, driven by sales through its mobile app.

Pre-tax profits rose from £62.1 million in 2014 to £73.16m in 2015. And it was helped by a "record low cheese price, favourable wheat price and a fall in fuel costs".

Domino's said more than three-quarters (77%) of orders are now placed online, with nearly half (48.6%) of those coming via its app. Online sales grew 29% in 2015, and with 11.5 million people having downloaded the app, orders from mobile devices grew 41%.

Speaking to the BBC, Domino's chief executive David Wild said: "The thing that customers want more than anything else is convenience and that means food that's delivered to their home.

"We have seen a massive increase in our online orders - a total of 11.5 million app downloads since we launched our app two or three years ago - and what we have learnt is that customers like to find it easy to get hold of a pizza and that's the most important trend."