Impresiones Web is leading in Top 100K Sites and Top 1M Sites.
Impresiones Web has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Adult, Music & Audio and 60 other categories.
zapunited is leading in Social Network, Mobile Developers, Public Health & Safety, Beauty and one other category.
Impresiones Web is leading in most countries, including Spain, Mexico, Argentina, Chile and 43 other countries.
zapunited is leading in India, Romania, Pakistan, Egypt and 6 other countries.