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, Computer & Electronics, Online Marketing and Internet & Telecom.
Revee is leading in most countries, including United States, United Kingdom, Austria, Israel and one other country.
Marktest is leading in Portugal, Brazil, Poland and India.