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, Business & Industry, News & Media, Sports and 98 other categories.
Observer is leading in Web Design and Running.
Meetrics is leading in most countries, including Germany, Poland, Austria, United States and 37 other countries.
Observer is leading in Russia, Lithuania and Singapore.