Ad Spirit is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Ad Spirit has better usage coverage in more websites categories. Including Sports, Business & Industry, Arts & Entertainment, Soccer and 89 other categories.
Six Apart Advertising is leading in Humor, Government, Law & Government, Nutrition and 7 other categories.
Ad Spirit is leading in most countries, including Germany, Austria, Switzerland, Poland and 25 other countries.
Six Apart Advertising is leading in United States, Indonesia, Nepal, Bangladesh and 3 other countries.