APSIS is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
dotMailer has better usage coverage in more websites categories. Including Business & Industry, Shopping, Travel, Marketing & Advertising and 105 other categories.
APSIS is leading in Science, Social Sciences, Financial Management, Law & Government and 27 other categories.
dotMailer is leading in most countries, including United Kingdom, United States, Australia, Germany and 48 other countries.
APSIS is leading in Sweden, Denmark, Norway, Finland and 10 other countries.