AdPlan is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
iCrossing has better usage coverage in more websites categories. Including People & Society, Shopping, Internet & Telecom, News & Media and 96 other categories.
AdPlan is leading in Business & Industry, Arts & Entertainment, Career & Education, Travel and 52 other categories.
iCrossing is leading in most countries, including United States, United Kingdom, Brazil, Spain and 55 other countries.
AdPlan is leading in Japan, Taiwan, Hong Kong, Viet Nam and 7 other countries.