Social Media and Email Marketing by VerticalResponse is the best way to revolutionize the way you connect with your audience.
APSIS is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
APSIS has better usage coverage in more websites categories. Including Finance, Science & Education, Heavy Industry & Engineering, Computers Electronics & Technology and 15 other categories.
VerticalResponse is leading in Arts & Entertainment, Community & Society, Pets & Animals, Hobbies & Leisure and one other category.
VerticalResponse is leading in most countries, including United States, Canada, India, Australia and 50 other countries.
APSIS is leading in Sweden, Denmark, Norway, Finland and 27 other countries.