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 79 other categories.
Observer is leading in Computer & Electronics, Software, Marketing & Advertising, Photography and 7 other categories.
InsightExpress is leading in most countries, including United States, China, Canada, India and 37 other countries.
Observer is leading in Israel and Indonesia.