Marktest is leading in Top 10K Sites and Top 100K Sites.
Trovus Revelations has better usage coverage in more websites categories. Including Business & Industry, Law & Government, Finance, Law and 36 other categories.
Marktest is leading in Music & Audio, Soccer, Newspapers and TV & Video.
Trovus Revelations is leading in most countries, including United Kingdom, United States, Canada, Germany and 19 other countries.
Marktest is leading in Portugal and Brazil.