Developers can easily integrate MongoDB Atlas into their applications using various programming languages and frameworks, taking advantage of high availability and scaling features without operational overhead. MongoDB Atlas provides security features, built-in replication, backups, fine-grained monitoring, automated patching, and one-click upgrades, as well as a choice of cloud providers and billing options. The platform is accessible through a GUI or via connection strings/URIs specific to the chosen framework, allowing developers to focus on their applications rather than database management. With MongoDB Atlas, users can prepare their application, connect it to the platform, add test data, explore the data, modify documents, and verify updates, making it easy to migrate existing data to the platform or build new applications with it.