FredHopper is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
FredHopper has better usage coverage in more websites categories. Including Shopping, Business & Industry, Clothing, Home & Garden and 31 other categories.
Marktest is leading in Arts & Entertainment, Music & Audio, TV & Video, Newspapers and 3 other categories.
FredHopper is leading in most countries, including United Kingdom, France, Germany, Netherlands and 32 other countries.
Marktest is leading in Brazil.