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, Home & Garden and 124 other categories.
Flattr is leading in Arts & Entertainment, People & Society, Computer & Electronics, Internet & Telecom and 68 other categories.
Amazon Payments is leading in most countries, including United States, Germany, United Kingdom, Japan and 81 other countries.
Flattr is leading in Russia, Czech Republic, Sweden, Brazil and 39 other countries.