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, Consumer Electronics and 8 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Germany, Ireland and 19 other countries.
YellowTracker is leading in Netherlands, Belgium, United States, Russia and 4 other countries.