SexTracker is leading in Top 100K Sites and Top 1M Sites.
WhosOn has better usage coverage in more websites categories. Including Business & Industry, Shopping, Computer & Electronics, Internet & Telecom and 128 other categories.
SexTracker is leading in Adult, People & Society, Animation & Comics, Gay, Lesbian, & Bisexual and 7 other categories.
WhosOn is leading in most countries, including United States, United Kingdom, India, Canada and 43 other countries.
SexTracker is leading in Germany, Russia, France, China and 32 other countries.