MailerLite is an email marketing tool designed for small businesses on a budget, offering an excellent free plan and easy-to-use features. It's ideal for those just starting out or with limited resources. In contrast, ConvertKit is geared towards solo creators like authors, bloggers, coaches, and course creators, providing innovative features to help grow and monetize their audience. Both platforms have powerful email automation capabilities, but ConvertKit's flexibility and customization options give it an edge in this area. While MailerLite has a more user-friendly interface, ConvertKit's focus on deliverability and minimalistic emails may appeal to some users. Ultimately, the choice between MailerLite and ConvertKit depends on your specific needs, with ConvertKit being a better fit for those looking to monetize their audience and grow their list quickly.