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 79 other categories.
Spark Studios is leading in Graphics & Multimedia Tools and Antiques & Collectibles.
ContentClick is leading in most countries, including United Kingdom, United States, Russia, Australia and 36 other countries.
Spark Studios hasn't got a lead over ContentClick in any country.