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 49 other categories.
Epicor Prophet21 is leading in Computer & Electronics, Software, Web Design, Programming and one other category.
Amazon Webstore is leading in most countries, including United States, Japan, United Kingdom, China and 39 other countries.
Epicor Prophet21 hasn't got a lead over Amazon Webstore in any country.