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, Autos & Vehicles, Sports and 38 other categories.
Open AdExchange is leading in Marketing & Advertising, News & Media, Real Estate, Music & Audio and 19 other categories.
freeXmedia is leading in most countries, including Germany, United States, Switzerland, Viet Nam and 5 other countries.
Open AdExchange is leading in Denmark and Sweden.