The Singular ROI Index is the first of its kind. While past research has measured ad network performance using metrics like user retention and revenue per install, it has neglected a major part of the picture: the cost associated with driving such engagement.

Drawing on data from over 1,500 apps owned by Singular customers and spending in more than 1,000 mobile ad networks, the Singular ROI Index aims to provide marketers with greater transparency into the mobile advertising market and to highlight the top 20 mobile ad networks that drove the best performance for marketers in 2016.