Buysight is leading in Top 100K Sites and Top 1M Sites.
Buysight has better usage coverage in more websites categories. Including Travel, Accommodation & Hotels, Shopping, Business & Industry and 25 other categories.
Marktest is leading in People & Society, Music & Audio, TV & Video, News & Media and 2 other categories.
Buysight is leading in most countries, including United States, Canada, Brazil, Peru and 12 other countries.
Marktest is leading in Portugal.