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, Shopping and 70 other categories.
Optimost is leading in Finance, Business & Industry, Insurance, Internet & Telecom and 32 other categories.
InsightExpress is leading in most countries, including United States, China, Russia, India and 29 other countries.
Optimost is leading in United Kingdom, Canada, Switzerland, Spain and 16 other countries.