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 17 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Germany, Netherlands and 23 other countries.
Vizu is leading in United States, Indonesia, India, Brazil and 7 other countries.