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 18 other categories.
PriceGrabber is leading in Shopping, Computer Hardware, Products & Shopping, Marketing & Advertising and 3 other categories.
Fathom SEO is leading in most countries, including United States, Germany, Hungary, Japan and one other country.
PriceGrabber is leading in Canada and United Kingdom.