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 111 other categories.
Harren Media is leading in Games, Video Games, Humor and Photography.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Russia and 71 other countries.
Harren Media is leading in Peru, Indonesia, South Korea, Ukraine and 6 other countries.