GSI Media is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Spark Studios has better usage coverage in more websites categories. Including Arts & Entertainment, Computer & Electronics, People & Society, Software and 18 other categories.
GSI Media is leading in Shopping, Clothing, Children, Internet & Telecom and 5 other categories.
GSI Media is leading in most countries, including United States, Russia, Australia, China and one other country.
Spark Studios is leading in France, India and Japan.