TruEffect is leading in Top 100K Sites and Top 1M Sites.
TruEffect has better usage coverage in more websites categories. Including News & Media, People & Society, Business & Industry, Arts & Entertainment and 40 other categories.
Vertster is leading in Computer Hardware, Womens Interests, Science, Furniture and 4 other categories.
TruEffect is leading in most countries, including United States, United Kingdom, India, Italy and 17 other countries.
Vertster is leading in Australia and Canada.