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 70 other categories.
InsightExpress is leading in News & Media, People & Society, Food & Drink, Finance and 30 other categories.
InsightExpress is leading in most countries, including United States, Australia, China, United Kingdom and 27 other countries.
Yahoo Search Marketing Analytics is leading in Japan, South Korea, Taiwan, Hong Kong and 23 other countries.