Be2bill is leading in Top 100K Sites and Top 1M Sites.
Be2bill has better usage coverage in more websites categories. Including Shopping, Business & Industry, Clothing, Search Engine and 11 other categories.
UpClick is leading in Computer & Electronics, Software, Programming, Computer Hardware and 3 other categories.
UpClick is leading in most countries, including United States, Germany, Brazil, United Kingdom and 6 other countries.
Be2bill is leading in France, Belgium, Turkey and Italy.