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 31 other categories.
Vertical Acuity is leading in Sports, Rugby, Video Games, Games and one other category.
Interpolls is leading in most countries, including United States, Brazil, Philippines, India and 14 other countries.
Vertical Acuity is leading in Norway.