SendGrid and Moosend are both email marketing platforms that allow businesses to design, send and track newsletters, campaigns, and transactional emails. The main difference between the two platforms is their approach to pricing. SendGrid charges based on how many emails are sent each month, whereas Moosend charges based on the number of subscribers. Both services offer features such as drag and drop email design, analytics, and A/B split testing. However, SendGrid stands out from Moosend in terms of email automation, with powerful rules-based sequences that allow complex and thorough automated campaigns. Moosend, on the other hand, is a better choice for businesses who want detailed segmentation capabilities and an intuitive user-interface. In conclusion, the best platform for a business will depend on its needs and objectives.