Simple Notification Service vs Simple Queue Service
The choice between SQS and SNS depends on your specific needs. Decide based on the nature of the message delivery, guarantee of delivery.
Simple Notification Service (SNS)
Unlike SQS, SNS shines in broadcasting messages. Imagine a town crier: SNS publishes messages to "topics" (town squares), and any subscribed "subscribers" (residents) receive copies (hear the message). Perfect for mass notifications like emails, SMS, or app pushes. While delivery isn't 100% guaranteed (unlike SQS), it's ideal for event-driven messaging, spreading the news when something happens.