Campaigner is leading in Top 100K Sites and Top 1M Sites.
iContact has better usage coverage in more websites categories. Including Business & Industry, People & Society, Arts & Entertainment, Health and 90 other categories.
Campaigner is leading in Shopping, News & Media, Adult, Law & Government and 84 other categories.
iContact is leading in most countries, including United Kingdom, Australia, Russia, Italy and 43 other countries.
Campaigner is leading in United States, Canada, Germany, Philippines and 27 other countries.