Proclivity is leading in Top 100K Sites and Top 1M Sites.
Proclivity has better usage coverage in more websites categories. Including Sports, Health, Football, Medicine and 28 other categories.
ROI trax is leading in Business & Industry, Shopping, Home & Garden, Internet & Telecom and 28 other categories.
Proclivity is leading in most countries, including United States, Great Britain, Brazil, Germany and 8 other countries.
ROI trax is leading in Canada, Chile, France, Australia and 6 other countries.