Be2bill is leading in Top 100K Sites and Top 1M Sites.
Be2bill has better usage coverage in more websites categories. Including Business & Industry, Shopping, Publishing & Printing, Arts & Entertainment and 7 other categories.
UpClick is leading in Computer & Electronics, Software, Programming, Computer Hardware and one other category.
UpClick is leading in most countries, including United States, Germany, Ukraine, Romania and one other country.
Be2bill is leading in France, Switzerland and Belgium.