Proclivity is leading in Top 100K Sites.
Proclivity has better usage coverage in more websites categories. Including Health, Sports, Football, Medicine and 32 other categories.
Vertical Leap is leading in Tourism and Travel.
Proclivity is leading in most countries, including United States, United Kingdom, Mexico, China and 14 other countries.
Vertical Leap hasn't got a lead over Proclivity in any country.