SpotX is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
SpotX has better usage coverage in more websites categories. Including Arts & Entertainment, News & Media, Autos & Vehicles, Car Buying and 82 other categories.
Twyn is leading in Weather, Classifieds, Running, Boating and 4 other categories.
SpotX is leading in most countries, including United States, Netherlands, Germany, Spain and 43 other countries.
Twyn is leading in Austria.