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 46 other categories.
Proclivity is leading in Sports, Health, Football, Medicine and 25 other categories.
WordStream is leading in most countries, including Netherlands, Great Britain, Canada, Switzerland and 9 other countries.
Proclivity is leading in United States, Brazil, Germany, Russia and 6 other countries.