MerchantAdvantage is leading in Top 100K Sites and Top 1M Sites.
MerchantAdvantage has better usage coverage in more websites categories. Including Shopping, Business & Industry, Home & Garden, Health and 36 other categories.
Unister is leading in Travel, Tourism, Internet & Telecom, Airlines & Airports and 2 other categories.
MerchantAdvantage is leading in most countries, including United States, Great Britain, Canada, Spain and 6 other countries.
Unister is leading in Germany, Switzerland, Austria, France and 5 other countries.