Ad Spirit is leading in Top 100K Sites and Top 1M Sites.
Ad Spirit has better usage coverage in more websites categories. Including Business & Industry, Sports, Arts & Entertainment, Soccer and 76 other categories.
Vocus is leading in Religion & Spirituality, Law & Government, Finance, Car Buying and 17 other categories.
Ad Spirit is leading in most countries, including Germany, Austria, Switzerland, Spain and 19 other countries.
Vocus is leading in United States, India, Canada, Brazil and 15 other countries.