AdAction is leading in Top 100K Sites and Top 1M Sites.
AdAction has better usage coverage in more websites categories. Including Business & Industry, Shopping, Internet & Telecom, Science and 87 other categories.
zapunited is leading in People & Society, Arts & Entertainment, Adult, Photography and 32 other categories.
AdAction is leading in most countries, including Sweden, Norway, Netherlands, Denmark and 42 other countries.
zapunited is leading in India, Brazil, Pakistan, Australia and 3 other countries.