Humble Widget is leading in Top 100K Sites and Top 1M Sites.
Humble Widget has better usage coverage in more websites categories. Including Games, Video Games, Arts & Entertainment, Internet & Telecom and 37 other categories.
PayZen is leading in Travel, Health, Sports, Winter Sports and 8 other categories.
Humble Widget is leading in most countries, including United States, United Kingdom, Germany, Russia and 46 other countries.
PayZen is leading in France, French Polynesia and Guernsey.