TruEffect is leading in Top 100K Sites and Top 1M Sites.
TruEffect has better usage coverage in more websites categories. Including People & Society, News & Media, Business & Industry, Arts & Entertainment and 40 other categories.
Vertster is leading in Computer Hardware, Womens Interests, Science, Furniture and 3 other categories.
TruEffect is leading in most countries, including United States, Japan, India, Germany and 18 other countries.
Vertster is leading in Australia and Portugal.