CampaignMonitor is leading in Top 100K Sites and Top 1M Sites.
VerticalResponse has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Religion & Spirituality, Health and 104 other categories.
CampaignMonitor is leading in Business & Industry, Shopping, Travel, Food & Drink and 94 other categories.
CampaignMonitor is leading in most countries, including United Kingdom, Australia, Canada, Germany and 106 other countries.
VerticalResponse is leading in United States, India, Italy, Brazil and 53 other countries.