InsightExpress is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InsightExpress has better usage coverage in more websites categories. Including Arts & Entertainment, Business & Industry, News & Media, People & Society and 59 other categories.
Optimost is leading in Finance, Insurance, Travel, Accommodation & Hotels and 19 other categories.
InsightExpress is leading in most countries, including United States, Australia, Germany, United Kingdom and 44 other countries.
Optimost is leading in Spain, Ireland, Portugal, Belgium and 10 other countries.