FredHopper is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Vizzit has better usage coverage in more websites categories. Including Science, Social Sciences, Government, Law & Government and 28 other categories.
FredHopper is leading in Business & Industry, Shopping, Clothing, Home & Garden and 27 other categories.
FredHopper is leading in most countries, including France, Netherlands, Great Britain, Germany and 39 other countries.
Vizzit is leading in Sweden, Norway, Yemen, Brazil and one other country.