freeXmedia is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
freeXmedia has better usage coverage in more websites categories. Including Sports, Arts & Entertainment, Autos & Vehicles, Games and 28 other categories.
Simple AdServer is leading in Sports and Adult.
freeXmedia is leading in most countries, including Germany, United States, Poland, Turkey and 3 other countries.
Simple AdServer is leading in Hungary.