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...

VS

SeeVolution
22 websites

SeeVolution costs money

http://www.seevolution.com

SeeVolution is a Los Angeles based web service that helps create a visual representation of how much traffic a website is receiving.

Market Share by Top Websites

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

Websites Categories

1 SeeVolution has better usage coverage in more websites categories. Including Computers Electronics & Technology, Business & Consumer Services, Adult, Food & Drink and 3 other categories.

2 ROI trax is leading in Home & Garden.

Geography

1 SeeVolution is leading in most countries, including United States, Colombia, Albania, China and 6 other countries.

2 ROI trax hasn't got a lead over SeeVolution in any country.