Having trouble nailing down which email marketing service provider to use for your business? Two of the most popular, AWeber and MailChimp, each have their devotees (and detractors). On first inspection they seem to offer a lot of the same features, with the exception that MailChimp has a free forever plan. But we dug deeper into these rivals to see how their differences could affect your ultimate choice. First, we’ll give you an overall review of each service and then delve into some of the most important features to see who wins this email marketing showdown.

Mailchimp and Constant Contact are two of the most well-known email marketing service providers — you’ve probably heard them mentioned through advertisements or office buzz. Here we’ll give you the lowdown on each service, their differences, their strengths, pricing and more to help you choose.