KeywordMax is leading in Top 1M Sites.
KeywordMax has better usage coverage in more websites categories. Including Business & Industry, People & Society, Health, Travel and 52 other categories.
Nextag ROI Optimizer is leading in Shopping, Marketing & Advertising, Home & Garden, Industrial Goods & Services and 5 other categories.
KeywordMax is leading in most countries, including United States, United Kingdom, Canada, Cyprus and 17 other countries.
Nextag ROI Optimizer is leading in Germany, France, Gambia, Japan and one other country.