KeywordMax is leading in Top 1M Sites.
KeywordMax has better usage coverage in more websites categories. Including Business & Industry, People & Society, Shopping, Health and 59 other categories.
PriceGrabber is leading in Computer Hardware, Marketing & Advertising, Computer Security, Government and one other category.
KeywordMax is leading in most countries, including United States, United Kingdom, Russia, Argentina and 14 other countries.
PriceGrabber is leading in Canada.