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 47 other categories.
Vertster is leading in Computer Hardware, Relationships & Dating, Food & Drink, Computer Security and 4 other categories.
TruEffect is leading in most countries, including United States, Japan, Italy, Canada and 22 other countries.
Vertster is leading in Australia and Finland.