Ad Spirit is leading in 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 90 other categories.
Twyn is leading in Weather, Classifieds, Biology, Womens Interests and 3 other categories.
Ad Spirit is leading in most countries, including Germany, Switzerland, United States, Poland and 26 other countries.
Twyn is leading in Austria and Norway.