MetriWeb is leading in Top 100K Sites and Top 1M Sites.
MetriWeb has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Career & Education, News & Media and 22 other categories.
Unister is leading in Travel, Tourism and Airlines & Airports.
MetriWeb is leading in most countries, including Belgium, France, Luxembourg, Netherlands and 2 other countries.
Unister is leading in Germany, Switzerland, Austria and Czech Republic.