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, News & Media, Health and 94 other categories.
AdPlan is leading in Business & Industry, Arts & Entertainment, Career & Education, Travel and 66 other categories.
iCrossing is leading in most countries, including United States, Brazil, United Kingdom, Canada and 52 other countries.
AdPlan is leading in Japan, Taiwan, China, Hong Kong and 5 other countries.