Interpolls is leading in Top 10K Sites and Top 100K Sites.
Interpolls has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, News & Media, Adult and 32 other categories.
Vertical Acuity is leading in Sports, Energy, Rugby, Video Games and one other category.
Interpolls is leading in most countries, including United States, Brazil, United Kingdom, Canada and 11 other countries.
Vertical Acuity is leading in Venezuela and Greece.