i-system is leading in Top 100K Sites and Top 1M Sites.
LightHouse has better usage coverage in more websites categories. Including Shopping, Clothing, Arts & Entertainment, Home & Garden and 43 other categories.
i-system is leading in Business & Industry, Career & Education, Education, Internet & Telecom and 23 other categories.
LightHouse is leading in most countries, including Netherlands, Germany, Belgium, France and 21 other countries.
i-system is leading in Poland, Greece, Malaysia, Korea Republic and 6 other countries.