FredHopper is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
FredHopper has better usage coverage in more websites categories. Including Business & Industry, Shopping, Clothing, Home & Garden and 33 other categories.
Vertster is leading in Computer & Electronics, Computer Hardware, Internet & Telecom, Science and 5 other categories.
FredHopper is leading in most countries, including France, Netherlands, United Kingdom, Germany and 43 other countries.
Vertster is leading in Australia and Brazil.