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, News & Media, Business & Industry, Sports and 107 other categories.
Observer is leading in Web Design and Running.
Meetrics is leading in most countries, including Germany, Poland, Austria, United Kingdom and 29 other countries.
Observer is leading in Japan, Philippines, Argentina and China.