Ad Butler is leading in Top 100K Sites and Top 1M Sites.
Ad Butler has better usage coverage in more websites categories. Including Business & Industry, News & Media, Sports, Career & Education and 93 other categories.
SpecificClick is leading in People & Society, Arts & Entertainment, Religion & Spirituality, Shopping and 57 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Belarus, Canada and 71 other countries.
SpecificClick is leading in Brazil, Norway, Indonesia, Denmark and 11 other countries.