Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Optimatic has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Video Games, Business & Industry and 20 other categories.
Simple AdServer is leading in Motorsports, Sports, Adult, Shopping and 2 other categories.
Optimatic is leading in most countries, including United States, United Kingdom, Israel, Canada and 9 other countries.
Simple AdServer is leading in Hungary.