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 30 other categories.
Visible Measures is leading in Software and Marketing & Advertising.
Interpolls is leading in most countries, including United States, Japan, Brazil, Spain and 13 other countries.
Visible Measures is leading in Romania.