freeXmedia is leading in Top 100K Sites and Top 1M Sites.
freeXmedia has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Sports, Autos & Vehicles and 41 other categories.
Simple AdServer is leading in Sports.
freeXmedia is leading in most countries, including Germany, United States, Switzerland, Russia and 4 other countries.
Simple AdServer is leading in Hungary, Slovakia and India.