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 48 other categories.
Nextag ROI Optimizer is leading in Shopping, Marketing & Advertising, Home & Garden, Industrial Goods & Services and 7 other categories.
WordStream is leading in most countries, including Netherlands, United States, Great Britain, Canada and 13 other countries.
Nextag ROI Optimizer is leading in France, Germany, Sweden, Romania and 2 other countries.