CampaignMonitor is leading in Top 10K Sites, 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 113 other categories.
CampaignMonitor is leading in Business & Industry, Shopping, Travel, Food & Drink and 88 other categories.
CampaignMonitor is leading in most countries, including United Kingdom, Australia, Canada, Germany and 108 other countries.
VerticalResponse is leading in United States, India, Philippines, Argentina and 37 other countries.