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 107 other categories.
Flattr is leading in People & Society, Arts & Entertainment, Computer & Electronics, Internet & Telecom and 70 other categories.
Amazon Payments is leading in most countries, including United States, Germany, United Kingdom, France and 56 other countries.
Flattr is leading in Russia, Sweden, Czech Republic, Austria and 43 other countries.