MailerLite is a relatively new email marketing service compared to Campaign Monitor. Both services have similar feature sets, but there are a few key differences. MailerLite comes with email automation and some advanced capabilities such as segmentation and A/B testing, while Campaign Monitor is primarily focused on simple newsletters and broadcast emails. MailerLite has a more affordable pricing model than Campaign Monitor, with lower starting prices, and the ability to pay as you grow and scale your subscription. MailerLite also includes a drag and drop email builder, which makes it easier to create beautiful emails, as well as a live customer support feature that is not available in Campaign Monitor.