Marktest is leading in Top 10K Sites and Top 100K Sites.
Marktest has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Music & Audio, News & Media and 6 other categories.
Revee is leading in Computer Security, Internet & Telecom, Online Marketing and Computer & Electronics.
Revee is leading in most countries, including Russia, Czech Republic and United States.
Marktest is leading in Portugal and Brazil.