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 65 other categories.
FredHopper is leading in Business & Industry, Shopping, Clothing, Home & Garden and 19 other categories.
Vizu is leading in most countries, including India, Great Britain, Canada, Germany and 32 other countries.
FredHopper is leading in France, Netherlands, Belgium, Austria and 22 other countries.