The news comes from a Bloomberg interview with YouTube’s vice president of sales Lucas Watson who commented: “It’s a huge part of our business, and we know that’s where it’s headed.”
Watson didn’t give specific revenue numbers, but Bloomberg estimates that YouTube ads generate around 10 per cent of Google’s overall revenues, and that mobile ads account for between 20 per cent and 25 per cent of YouTube’s sales.
YouTube says that 25 per cent of its global views come from mobile devices: 1 billion views a day. That’s a tenfold increase since July 2010, when YouTube was generating 100 million mobile views a day, three years after its mobile service’s launch in 2007.
Google couldn’t show ads in the native YouTube iOS app as part of its deal with Apple. More recent stats from analytics firm Distimo show YouTube as the most popular-non-gaming app for iOS based on downloads in May 2013.