You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Google's Android Catching Up to Apple in Race for Mobile Ad Dollars Report Shows Android Outpacing iOS in Mobile Ad Traffic and Gaining in Revenues By Mark Bergen, Published on April 22, 2014 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.