Meetrics is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Meetrics has better usage coverage in more websites categories. Including Arts & Entertainment, Sports, News & Media, Business & Industry and 68 other categories.
Observer is leading in Computer & Electronics, Software, Marketing & Advertising, Photography and 6 other categories.
Meetrics is leading in most countries, including Germany, Poland, Austria, France and 20 other countries.
Observer is leading in United States, United Kingdom, Ukraine, Australia and one other country.