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 36 other categories.
PayZen is leading in Accommodation & Hotels, Travel, Autos & Vehicles, Health and 4 other categories.
Humble Widget is leading in most countries, including United States, United Kingdom, Germany, Russia and 40 other countries.
PayZen is leading in France, French Polynesia and Denmark.