FredHopper is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
YellowTracker has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, News & Media and 72 other categories.
FredHopper is leading in Shopping, Clothing, Home & Garden, Adult and 13 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Germany, Spain and 32 other countries.
YellowTracker is leading in Netherlands, Belgium, Brazil, Korea Republic and 6 other countries.