AdTiger is leading in Top 100K Sites and Top 1M Sites.
AdTiger has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, News & Media, People & Society and 88 other categories.
Kelkoo is leading in Children.
AdTiger is leading in most countries, including Germany, Austria, Switzerland, Albania and 17 other countries.
Kelkoo is leading in Norway, Spain, Czech Republic, Denmark and 2 other countries.