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, Autos & Vehicles, News & Media, Car Buying and 103 other categories.
ViralBuzzer is leading in Online Marketing.
SpotX is leading in most countries, including United States, Sweden, Germany, Netherlands and 47 other countries.
ViralBuzzer is leading in Poland.