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, Football, Health, Medicine and 22 other categories.
WordStream is leading in most countries, including Canada, Mexico, Bulgaria, Algeria and 9 other countries.
Proclivity is leading in United States, China, India, Germany and 4 other countries.