i-system is leading in Top 100K Sites and Top 1M Sites.
Selly Shop has better usage coverage in more websites categories. Including Shopping, Business & Industry, Arts & Entertainment, Consumer Electronics and 35 other categories.
i-system is leading in Clothing, Career & Education, Education, Pets & Animals and 16 other categories.
i-system is leading in most countries, including Greece, Russia, Malaysia, Korea Republic and 12 other countries.
Selly Shop is leading in Poland, Germany, Indonesia, United States and 6 other countries.