InsightExpress is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Yahoo Search Marketing Analytics has better usage coverage in more websites categories. Including Business & Industry, Shopping, Arts & Entertainment, Health and 74 other categories.
InsightExpress is leading in News & Media, People & Society, Finance, Weight Loss and 33 other categories.
InsightExpress is leading in most countries, including United States, Australia, Spain, India and 39 other countries.
Yahoo Search Marketing Analytics is leading in Japan, South Korea, Taiwan, Hong Kong and 11 other countries.