Optimatic is leading in Top 10K Sites and Top 100K Sites.
Undertone Networks has better usage coverage in more websites categories. Including People & Society, News & Media, Business & Industry, Arts & Entertainment and 77 other categories.
Optimatic is leading in Games, Video Games, Home & Garden, Online and 5 other categories.
Undertone Networks is leading in most countries, including United States, United Kingdom, Germany, Japan and 23 other countries.
Optimatic is leading in Israel, Romania, Poland, Malawi and 2 other countries.