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 52 other categories.
Nextag ROI Optimizer is leading in Shopping, Marketing & Advertising, Home & Garden, Industrial Goods & Services and 9 other categories.
WordStream is leading in most countries, including United States, South Africa, Canada, United Kingdom and 7 other countries.
Nextag ROI Optimizer is leading in Germany, France, Japan, Indonesia and 3 other countries.