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 87 other categories.
CampaignMonitor is leading in most countries, including United Kingdom, Australia, Canada, Germany and 81 other countries.
VerticalResponse is leading in United States, India, Philippines, Argentina and 59 other countries.