Nextag ROI Optimizer
3 websites

Nextag ROI Optimizer is free to use

http://nextagsellers.blogspot.com/2010/02/roi-optimizer.html

2 Feb 2010 ... The ROI Optimizer is one of the most important features that you can implement to understand the performance of your account. What is it?

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, Nextag ROI Optimizer is clearly lagging behind, losing to ROI trax in all segments.

Websites Categories

1 ROI trax has better usage coverage in more websites categories. Including Computers Electronics & Technology, Health and Home & Garden.

2 Nextag ROI Optimizer is leading in Lifestyle.

Geography

1 ROI trax is leading in most countries, including Mexico.

2 ROI trax is leading in Mexico.