William Hill said its iOS Sportsbook App has reached two million downloads since its launch in 2012.
Downloads reached one and half million earlier this year and a spike of 80 000 downloads in the past five days since the FIFA World Cup kicked off has been recorded.
Juergen Reutter, Operations Director at William Hill Online, said: “This is a fantastic achievement and one of which we are extremely proud. Since we launched in 2012 we have aimed to offer the best, most seamless, customer experience regardless of screen size, device or operating system.
“Mobile is a fantastic way to engage with our customers anytime, anywhere and our iOS App has been fundamental in building that relationship. We don’t stand still and we constantly aim to improve our products.
“To pass two million downloads shows we are listening to our customers and giving them the products and services they demand and expect from Britain’s No1 bookmaker.”
In March this year, William Hill also launched the app on Android while in recent week’s iOS versions were launched in both Spain and Italy in time for the World Cup.