Amazon Simple Notification Service is a highly available, durable, secure, fully managed messaging service that makes it easy to set up, operate, and send notifications from the cloud.
SNS use cases:
- event notification, monitoring applications, workflow systems, time-sensitive information updates
- can be used in workflow systems to relay events among distributed computer applications, move data between data stores or update records in business systems
- provides significant advantages to developers who build applications that rely on real-time events.
Hope this helped!