In terms of market share, AdTotal is clearly lagging behind, losing to Vocus in all segments.
Vocus has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, News & Media and 89 other categories.
AdTotal is leading in Soccer, Humor, Chats & Forums, Motorcycles and 2 other categories.
Vocus is leading in most countries, including United States, India, Canada, United Kingdom and 28 other countries.
AdTotal is leading in Poland and Belarus.