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 Sports, Career & Education, Finance, Health and 80 other categories.
Simply is leading in People & Society, Arts & Entertainment, Business & Industry, News & Media and 69 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Germany and 63 other countries.
Simply is leading in Italy, Spain, Czech Republic, Poland and 8 other countries.