Ad Butler is leading in Top 10K Sites, 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 139 other categories.
PubExchange is leading in Nursery & Playroom, Home & Garden, Beauty & Fitness, Clothing and 9 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Germany and 75 other countries.
PubExchange is leading in Sri Lanka, Belarus, Uganda, Togo and 3 other countries.