TruEffect is leading in Top 100K Sites and Top 1M Sites.
Vizu has better usage coverage in more websites categories. Including People & Society, News & Media, Arts & Entertainment, Technology News and 66 other categories.
TruEffect is leading in Business & Industry, Performing Arts, Marketing & Advertising, Career & Education and 16 other categories.
Vizu is leading in most countries, including Indonesia, Brazil, India, Canada and 16 other countries.
TruEffect is leading in United States, Japan, Russia, France and 9 other countries.