Fathom SEO
5 websites

Fathom SEO offers both free and paid options

http://www.fathomseo.com/

Search engine optimization firm offering pay-per-click, link building and web analytics. Cleveland, Ohio.

VS

ROI trax
4 websites

ROI trax is free to use

http://www.oneupweb.com/oneupweb_glossary/roi_trax/

Oneupweb®’s proprietary ROI trax® technology was designed to help marketers measure performance of online marketing right down to which keywords bring in the most customers; landing-page effectiveness, position reporting, competitor monitor...

Market Share by Top Websites

2 In terms of market share, Fathom SEO is clearly lagging behind, losing to ROI trax in all segments.

Websites Categories

1 Fathom SEO has better usage coverage in more websites categories. Including Business & Consumer Services and Lifestyle.

2 ROI trax is leading in Health and Home & Garden.

Geography

1 Fathom SEO is leading in most countries, including Germany, South Korea and Egypt.

2 ROI trax is leading in Mexico.