Popcorn Metrics is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Vizu has better usage coverage in more websites categories. Including People & Society, News & Media, Arts & Entertainment, Technology News and 63 other categories.
Popcorn Metrics is leading in Business & Industry, Shopping, Travel, Tourism and 21 other categories.
Popcorn Metrics is leading in most countries, including United States, Australia, United Kingdom, Russia and 18 other countries.
Vizu is leading in Canada, Indonesia, Germany, Brazil and 9 other countries.