WebProspector is leading in Top 1M Sites.
YellowTracker has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, News & Media, Shopping and 49 other categories.
WebProspector is leading in Business & Industry, Internet & Telecom, Marketing & Advertising, Computer & Electronics and 19 other categories.
YellowTracker is leading in most countries, including Netherlands, Belgium, United Kingdom, Poland and 11 other countries.
WebProspector is leading in Germany, Austria, United States, Italy and 7 other countries.