Amazon SNS(Simple Notification Service)
Basically, it helps to manage notifications easily. It is highly available, durable, secure, fully managed pub/sub messaging service that enables one to decouple microservices, distributed systems, and serverless applications.
It is basically for real-time streaming updates. It has 4 services: Data Firehose, Data Analytics, Data Streams, Video Streams.
Amazon MQ is a managed message broker service for Apache ActiveMQ and RabbiMQ that makes it easy to set up and operate message brokers in the cloud. Although it does not have that much integration with AWS like SNS, and SQS but can be used for shifting from on-premises to cloud purposes.
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