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 60 other categories.
Atom Store is leading in Clothing, Home & Garden, Sports, Health and 9 other categories.
Amazon Webstore is leading in most countries, including United States, Japan, Germany, India and 44 other countries.
Atom Store is leading in Poland, Belarus and Slovakia.