According to a study by Ovum for the Internet Advertising Bureau , fewer than 50% of 300 surveyed leading US marketers use media buying agencies for their mobile advertising due to a lack of mobile expertise. In order to enable ad agencies to provide their clients with mobile media buying expertise to optimize campaigns based on a range of performance metrics including ROI, mobile attribution analytics provider AppsFlyer is launching “AppsFlyer for Agencies.” As a mobile advertising monitoring solution and a Facebook Mobile Measurement Partner, AppsFlyer provides real-time mobile app tracking and campaign analytics that allows both ad agencies and advertisers to manage, measure and optimize mobile marketing.