Ad Butler is leading in Top 100K Sites and Top 1M Sites.
Ad Butler has better usage coverage in more websites categories. Including Sports, Career & Education, Health, Finance and 82 other categories.
Simply is leading in People & Society, Arts & Entertainment, Business & Industry, News & Media and 67 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Belarus and 60 other countries.
Simply is leading in Italy, Spain, France, Brazil and 13 other countries.