TruEffect is leading in Top 100K Sites and Top 1M Sites.
TruEffect has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, Health, People & Society and 3 other categories.
WebProspector is leading in Business & Industry, Internet & Telecom, Computer & Electronics, Shopping and 3 other categories.
TruEffect is leading in most countries, including United States, China, Philippines, Russia and 8 other countries.
WebProspector is leading in Germany, Austria, United Kingdom, Argentina and 6 other countries.