For the first time ever people in the US are spending more time using mobile phone apps than browsing the web.
An 'app' is short for mobile application – a small program, usually for games or social networking, downloaded to a mobile phone.
The report, from mobile app analytics company Flurry, said that while web use was still slowly growing, mobile app use had almost doubled in 12 months.
Over a period in June 2010 the average US citizen spent 64 minutes on the web and 43 minutes using mobile apps.
This year they spent an average of 74 minutes on the web and 81 minutes using apps - web use grew by 16 per cent, while app use grew by 91 per cent.
A spokesman for Flrry said: “Our analysis shows that, for the first time ever, daily time spent in mobile apps surpasses desktop and mobile web consumption.
“This stat is even more remarkable if you consider that it took less than three years for native mobile apps to achieve this level of usage."
Flurry also said that, on the web, the average user spent 14 minutes of their total 74 minutes on Facebook.