Marktest is leading in Top 10K Sites and Top 100K Sites.
Marktest has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Music & Audio, News & Media and 6 other categories.
Revee is leading in Computer & Electronics and Computer Security.
Marktest is leading in most countries, including Portugal, Brazil, Israel, France and one other country.
Revee is leading in United States, Kuwait and Great Britain.