Amazon Payments is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Amazon Payments has better usage coverage in more websites categories. Including Shopping, Business & Industry, Clothing, Health and 122 other categories.
Flattr is leading in Arts & Entertainment, People & Society, Computer & Electronics, Internet & Telecom and 69 other categories.
Amazon Payments is leading in most countries, including United States, Germany, United Kingdom, Japan and 70 other countries.
Flattr is leading in France, Russia, Czech Republic, Austria and 37 other countries.