Proclivity is leading in Top 100K Sites and Top 1M Sites.
WordStream has better usage coverage in more websites categories. Including Business & Industry, People & Society, Relationships & Dating, Autos & Vehicles and 47 other categories.
Proclivity is leading in Sports, Health, Football, Medicine and 17 other categories.
WordStream is leading in most countries, including Mexico, Canada, Hungary, Bulgaria and 9 other countries.
Proclivity is leading in United States, United Kingdom, Germany, Costa Rica and 6 other countries.