SpotX is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
SpotX has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, Autos & Vehicles, Car Buying and 97 other categories.
StackAdapt is leading in Clothing, Consumer Electronics, Nursery & Playroom and Consumer Electronics.
SpotX is leading in most countries, including United States, Germany, Netherlands, United Kingdom and 45 other countries.
StackAdapt is leading in Canada.