In terms of market share, Nextag ROI Optimizer is clearly lagging behind, losing to WordStream in all segments.
WordStream has better usage coverage in more websites categories. Including Business & Industry, People & Society, Relationships & Dating, Autos & Vehicles and 54 other categories.
Nextag ROI Optimizer is leading in Shopping, Clothing, Marketing & Advertising, Home & Garden and 8 other categories.
WordStream is leading in most countries, including United States, Mexico, Australia, Netherlands and 9 other countries.
Nextag ROI Optimizer is leading in Germany, United Kingdom, France, Saudi Arabia and 5 other countries.