Bluemetrix is leading in Top 100K Sites and Top 1M Sites.
Bluemetrix has better usage coverage in more websites categories. Including Business & Industry, Real Estate, Shopping, Arts & Entertainment and 47 other categories.
Usablenet is leading in Clothing, Mobile Developers, Visual Arts & Design, Gifts and 5 other categories.
Bluemetrix is leading in most countries, including Japan, United Kingdom, Ireland, Russia and 37 other countries.
Usablenet is leading in United States, Italy, Mexico, Peru and one other country.