Encore Metrics is leading in Top 100K Sites.
Encore Metrics has better usage coverage in more websites categories. Including Travel, Accommodation & Hotels, Business & Industry, Shopping and 18 other categories.
Marktest is leading in People & Society, Arts & Entertainment, Music & Audio, TV & Video and one other category.
Encore Metrics is leading in most countries, including United States, Japan, Canada, Russia and 7 other countries.
Marktest is leading in Brazil and Portugal.