In terms of market share, Nextag ROI Optimizer is clearly lagging behind, losing to PriceGrabber in all segments.
Nextag ROI Optimizer has better usage coverage in more websites categories. Including Shopping, Business & Industry, Marketing & Advertising, Home & Garden and 19 other categories.
PriceGrabber is leading in Computer & Electronics, Computer Hardware, Law & Government, Government and 5 other categories.
Nextag ROI Optimizer is leading in most countries, including United States, France, Germany, Greece and 3 other countries.
PriceGrabber is leading in Canada, Peru and United Kingdom.