Marktest is leading in Top 10K Sites and Top 100K Sites.
Marktest has better usage coverage in more websites categories. Including Arts & Entertainment, Newspapers, News & Media, TV & Video and one other category.
Revee is leading in Computer & Electronics, Computer Security, Shopping and Consumer Electronics.
Revee is leading in most countries, including United States, Australia, Romania, Algeria and one other country.
Marktest is leading in Brazil, Portugal and Italy.