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 97 other categories.
Impresiones Web is leading in People & Society, Arts & Entertainment, Adult, Games and 21 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, India and 66 other countries.
Impresiones Web is leading in Spain, Mexico, Argentina, Chile and 16 other countries.