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AWS Messaging services
SNS
SNS: Simple Notification Service
Similar to SQS but the focus is on notifications rather than messages, i.e events that fire when something specific happens, not just a message-send event. It can be used for passing notifications between applications or to persons through SMS, text, push notifications and email.
SNS pushes messages out to subscribers while SQS stores the messages until someone reads them.
Relation between SNS and SQS - typically paired aren't they.