AdServerPub is leading in Top 1M Sites.
AdServerPub has better usage coverage in more websites categories. Including Arts & Entertainment, Shopping, Games, People & Society and 59 other categories.
Spark Studios hasn't got a lead over AdServerPub in any websites category.
AdServerPub is leading in most countries, including France, Morocco, United States, Russia and 34 other countries.
Spark Studios is leading in Egypt.