Harren Media is leading in Top 100K Sites and Top 1M Sites.
Harren Media has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, TV & Video, Movies and 51 other categories.
Spark Studios is leading in Lottery, Antiques & Collectibles, Beauty & Fitness, Weight Loss and 3 other categories.
Harren Media is leading in most countries, including Brazil, Mexico, Spain, India and 29 other countries.
Spark Studios is leading in Germany.