InsightExpress is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InsightExpress has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, News & Media, Business & Industry and 80 other categories.
Observer is leading in Computer & Electronics, Software, Photography, Transportation & Logistics and 5 other categories.
InsightExpress is leading in most countries, including United States, China, Canada, United Kingdom and 40 other countries.
Observer is leading in Korea Republic.