In terms of market share, Fathom SEO is clearly lagging behind, losing to iProspect in all segments.
iProspect has better usage coverage in more websites categories. Including Business & Industry, Travel, People & Society, Internet & Telecom and 33 other categories.
Fathom SEO is leading in Health, Senior Health, Industrial Goods & Services, Beauty & Fitness and 8 other categories.
iProspect is leading in most countries, including Australia, India, Uruguay, United Kingdom and 5 other countries.
Fathom SEO is leading in United States, Germany, Japan, Philippines and one other country.