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.
Usablenet is leading in Shopping, Clothing, Consumer Electronics, Mobile Developers and 5 other categories.
TruEffect is leading in most countries, including United States, Japan, Brazil, Germany and 11 other countries.
Usablenet is leading in United Kingdom, Spain, Chile, Belarus and 6 other countries.