WhosOn is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
WhosOn has better usage coverage in more websites categories. Including Business & Industry, Shopping, Computer & Electronics, Travel and 103 other categories.
Widdit is leading in People & Society, Arts & Entertainment, Religion & Spirituality, Music & Audio and 34 other categories.
Widdit is leading in most countries, including Brazil, India, Israel, Russia and 44 other countries.
WhosOn is leading in United Kingdom, United States, Germany, Canada and 43 other countries.