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 48 other categories.
Proclivity is leading in Sports, Health, Football, Medicine and 19 other categories.
Proclivity is leading in most countries, including United States, United Kingdom, Germany, China and 7 other countries.
WordStream is leading in Mexico, Brazil, South Africa, Russia and 6 other countries.