In terms of market share, Fathom SEO is clearly lagging behind, losing to Unister in all segments.
Fathom SEO has better usage coverage in more websites categories. Including Business & Industry, Health, Senior Health, Industrial Goods & Services and 21 other categories.
Unister is leading in Travel, Tourism, Sports, Car Buying and 2 other categories.
Unister is leading in most countries, including Germany, Austria, Switzerland, Ukraine and 2 other countries.
Fathom SEO is leading in United States, Taiwan, Czech Republic, Japan and one other country.