"some connecting to more than 800 user tracking sites. What's more many of these are created by organizations that Google has designated with "top developer status." The worst offender is an app called Eurosport Player which connects to 810 different user tracking sites."
http://www.technologyreview.com/view/537186/the-truth-about-smartphone-apps-that-secretly-connect-to-user-tracking-and-ad-sites/