In terms of market share, Fathom SEO is clearly lagging behind, losing to PriceGrabber in all segments.
Fathom SEO has better usage coverage in more websites categories. Including Business & Industry, Health, Senior Health, Industrial Goods & Services and 19 other categories.
PriceGrabber is leading in Shopping, Marketing & Advertising, Computer Hardware, Computer Security and 5 other categories.
Fathom SEO is leading in most countries, including United States, Germany, Hong Kong, Japan and 2 other countries.
PriceGrabber is leading in Canada, Australia, Mexico and United Kingdom.