Ad Spirit is leading in Top 100K Sites and Top 1M Sites.
Ad Spirit has better usage coverage in more websites categories. Including Sports, Business & Industry, Arts & Entertainment, Soccer and 76 other categories.
Shopzilla is leading in Consumer Electronics, Beauty & Fitness, Adult, Home & Garden and 16 other categories.
Ad Spirit is leading in most countries, including Germany, Austria, Switzerland, Poland and 14 other countries.
Shopzilla is leading in United States, Canada, India, Malaysia and 13 other countries.