In terms of market share, Open AdExchange is clearly lagging behind, losing to Simple AdServer in all segments.
Open AdExchange has better usage coverage in more websites categories. Including Business & Industry, Shopping, Newspapers, People & Society and 13 other categories.
Simple AdServer is leading in Web Hosting, Software and Adult.
Open AdExchange is leading in most countries, including Denmark, Germany, Norway, Sweden and one other country.
Simple AdServer is leading in Hungary.