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, Arts & Entertainment, Sports and 103 other categories.
SmartContext is leading in Video Games, Games, Chats & Forums, Humor and 10 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Mexico and 72 other countries.
SmartContext is leading in Poland, Ukraine, Timor-Leste, Czech Republic and 4 other countries.