- fully managed [[Message Queues|Message Queue]] service - decouples communication between [[Distributed Systems|Distributed]] components - is different from [[AWS SNS|SNS]] - in SQS, consumers actively poll for messages, messages persist and are meant to be processed (can persist from 1 min to 14 days) - more suited for message processing use cases ![[sqs.png]] https://ably.com/topic/aws-sns-vs-sqs#:~:text=SNS%20is%20typically%20used%20for,1%20minute%20to%2014%20days).