The company has seen a 42 percent increase in app usage from a year ago, with 70 million smartphone owners using the app in March the United States.
Six months ago Google launched a native YouTube app months after we reported that Apple was set to remove the stock YouTube app with iOS 6. The stock app that had been included with iOS since 2007 did not include ads, but YouTube's new iOS app frequently features ads before videos are played.The recent growth in usage follows Apple Inc.'s decision last year to drop YouTube as a core application in the iOS software for iPhones and iPads, said Phil Farhi, director of product management at YouTube
Article Link: YouTube's Mobile Ad Sales Triple Soon After Debuting Ad-Enabled iOS App