Ceros is leading in Top 100K Sites and Top 1M Sites.
Ceros has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Shopping, Finance and 62 other categories.
Whichit is leading in Sports and Gambling.
Ceros is leading in most countries, including United States, United Kingdom, South Africa, Belgium and 40 other countries.
Whichit is leading in Croatia and Tanzania.