ContentClick is leading in Top 100K Sites and Top 1M Sites.
ContentClick has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Sports, News & Media and 80 other categories.
Spark Studios is leading in Antiques & Collectibles, Graphics & Multimedia Tools and Animation & Comics.
ContentClick is leading in most countries, including United Kingdom, United States, Russia, Ireland and 34 other countries.
Spark Studios hasn't got a lead over ContentClick in any country.