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, Arts & Entertainment, News & Media, Sports and 138 other categories.
PubExchange is leading in Home & Garden, Nursery & Playroom, Beauty & Fitness, Clothing and 11 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Belarus and 72 other countries.
PubExchange is leading in Macedonia, Armenia, Morocco and Guatemala.