FeedPerfect is leading in Top 100K Sites and Top 1M Sites.
FeedPerfect has better usage coverage in more websites categories. Including Shopping, Business & Industry, Home & Garden, Clothing and 50 other categories.
PriceGrabber is leading in Computer & Electronics, Computer Hardware, Marketing & Advertising, Computer Security and one other category.
FeedPerfect is leading in most countries, including United States, Canada, Brazil, China and 22 other countries.
PriceGrabber hasn't got a lead over FeedPerfect in any country.