Korrelate is leading in Top 100K Sites and Top 1M Sites.
Vocus has better usage coverage in more websites categories. Including Business & Industry, People & Society, Computer & Electronics, Health and 40 other categories.
Korrelate is leading in Autos & Vehicles, Car Buying, Automotive Industry, Arts & Entertainment and 13 other categories.
Vocus is leading in most countries, including India, Canada, Brazil, Russia and 18 other countries.
Korrelate is leading in United States, China, Mexico, United Kingdom and 11 other countries.