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 68 other categories.
Optimost is leading in Finance, Business & Industry, Insurance, Travel and 33 other categories.
InsightExpress is leading in most countries, including United States, China, Poland, Canada and 25 other countries.
Optimost is leading in United Kingdom, Germany, Spain, Australia and 20 other countries.