APSIS is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
dotMailer has better usage coverage in more websites categories. Including Shopping, Travel, Clothing, Health and 91 other categories.
APSIS is leading in Business & Industry, Marketing & Advertising, Science, Social Sciences and 50 other categories.
dotMailer is leading in most countries, including United Kingdom, United States, Australia, Canada and 38 other countries.
APSIS is leading in Sweden, Denmark, Norway, Finland and 23 other countries.