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 22 other categories.
Vertster is leading in Computer & Electronics, People & Society, Computer Hardware, Relationships & Dating and 6 other categories.
Encore Metrics is leading in most countries, including United States, Japan, Russia, Germany and 5 other countries.
Vertster is leading in Australia, China and Brazil.