FredHopper is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Vizu has better usage coverage in more websites categories. Including People & Society, News & Media, Arts & Entertainment, Technology News and 67 other categories.
FredHopper is leading in Shopping, Business & Industry, Clothing, Home & Garden and 16 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Germany, Netherlands and 21 other countries.
Vizu is leading in United States, Indonesia, India, Canada and 10 other countries.