Korrelate is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Shopzilla has better usage coverage in more websites categories. Including Shopping, People & Society, Arts & Entertainment, Business & Industry and 122 other categories.
Korrelate is leading in Autos & Vehicles, Car Buying, Automotive Industry, Makes & Models and 7 other categories.
Shopzilla is leading in most countries, including Russia, United Kingdom, Canada, Australia and 30 other countries.
Korrelate is leading in United States, Philippines, Chile, Serbia and 4 other countries.