MailerLite is an email service provider that helps businesses create, send, manage and measure the success of their marketing campaigns. Prospect.io is an email-centric sales automation platform that helps sales teams engage with their prospects and build relationships at scale. MailerLite is mainly focused on providing an easy-to-use email platform for businesses of all sizes, while Prospect.io helps sales teams automate the creation and management of sales campaigns using their powerful and intuitive interface. MailerLite provides features such as automated segmentation, email templates, email deliverability tracking, and advanced analytics, while Prospect.io offers features such as predictive lead scoring, email personalization, behavior-triggered email campaigns and more. Both solutions offer powerful email solutions to their customers, however the focus and the features offered are slightly different.