Amazon Webstore is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Amazon Webstore has better usage coverage in more websites categories. Including Shopping, Business & Industry, General Merchandise, Arts & Entertainment and 48 other categories.
Atom Store is leading in Clothing, Games, Home & Garden, Health and 10 other categories.
Amazon Webstore is leading in most countries, including United States, Japan, United Kingdom, China and 40 other countries.
Atom Store is leading in Poland, Slovakia, Romania and Belarus.