PayZen is leading in Top 1M Sites.
PayZen has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Travel, Shopping and 15 other categories.
UpClick is leading in Computer & Electronics, Software, People & Society, Programming and 4 other categories.
UpClick is leading in most countries, including United States, Germany, Brazil, Indonesia and 4 other countries.
PayZen is leading in France, French Polynesia, India, Switzerland and 3 other countries.