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 93 other categories.
Twyn is leading in Weather, Classifieds, Biology, Beauty & Fitness and one other category.
SpotX is leading in most countries, including United States, Germany, Netherlands, United Kingdom and 49 other countries.
Twyn is leading in Austria and Switzerland.