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 Health, Sports, Medicine, Football and 17 other categories.
Proclivity is leading in most countries, including United States, Russia, Germany, Italy and 9 other countries.
WordStream is leading in Mexico, India, Brazil, Malaysia and 6 other countries.