Amazon SNS review
A flexible AWS message broker for fan-out, notifications, and FIFO delivery.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Amazon SNS is a managed publish-subscribe messaging service for application-to-application and application-to-person communication. It publishes messages to topics and asynchronously fans them out to destinations including Amazon SQS, AWS Lambda, Amazon Data Firehose, HTTP/S endpoints, email, SMS, and mobile push. Standard topics provide best-effort ordering and at-least-once delivery, while FIFO topics support ordered and deduplicated delivery to Amazon SQS FIFO queues. It suits teams building notification systems, event fan-out workflows, and AWS-centered application messaging through the console, CLI, SDKs, or API.
Pricing is usage-based rather than organized around conventional fixed tiers. The Free Tier includes 1 million SNS requests, 100,000 HTTP notifications, and 1,000 email notifications per month. Paid usage starts at $0.50 per 1 million API requests per month. HTTP notification delivery is priced at $0.06 per 100,000 notifications, while email delivery is $2 per 100,000 notifications. This structure can work well for variable workloads, but buyers should account for request and delivery charges separately when designing high-volume notification flows.
SNS stands out for delivery breadth and message-handling controls. Attribute- or payload-based filtering can direct messages to relevant subscribers, while dead-letter queues address failed deliveries. FIFO topics add ordering, deduplication, message archiving, and replay, and server-side encryption with AWS KMS plus VPC endpoints through AWS PrivateLink support AWS-based security designs. The maximum configurable topic message size is 1 MiB. Choose SNS for AWS fan-out and multi-channel notifications; consider another option if your priority is a fixed-price plan structure or a deployment model outside the AWS ecosystem.
Questions about Amazon SNS
Does Amazon SNS have a free plan? Yes, there is a free plan.
What does Amazon SNS run on? Web. It runs in the cloud.
What does Amazon SNS integrate with? 7 integrations, including Amazon SQS, AWS Lambda, Amazon Data Firehose, HTTP/S and SMS.
Who is Amazon SNS built for? Small businesses, mid-market companies and enterprises (our editorial estimate).
Amazon SNS pros and cons
- Where it wins
- Standard and FIFO topics support flexible delivery patterns
- Filtering, deduplication, replay, and dead-letter queues
- Delivers to SQS, Lambda, HTTP/S, email, SMS, and mobile push
- Where it doesn't
- Usage-based pricing can span multiple delivery charges
- FIFO features center on supported SNS-to-SQS configurations
- Cloud deployment is closely tied to the AWS ecosystem
Amazon SNS fact sheet, pricing and score →
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