ClearSaleing is leading in Top 100K Sites and Top 1M Sites.
ClearSaleing has better usage coverage in more websites categories. Including Travel, Accommodation & Hotels, Shopping, Business & Industry and 52 other categories.
Marktest is leading in Soccer and Newspapers.
ClearSaleing is leading in most countries, including United States, United Kingdom, Canada, Russia and 23 other countries.
Marktest is leading in Portugal.