What is Amazon SNS?

Amazon Simple Notification Service (SNS) is a fully managed publish/subscribe messaging service from AWS. It lets applications send messages to multiple subscribers at once, supporting both application-to-application (A2A) delivery to endpoints like AWS Lambda and Amazon SQS, and application-to-person (A2P) delivery through SMS, mobile push, and email. SNS integrates with more than 60 AWS services and is commonly used to decouple microservices and fan out event notifications.

The service offers standard topics for high throughput delivery and FIFO topics for strict message ordering with deduplication. Features include message filtering, batching, archiving and replay, dead letter queues, and encryption with AWS KMS. Pricing is usage based with a permanent free tier covering the first million requests each month.

Key Features of Amazon SNS

Here are the powerful features that make Amazon SNS stand out from the competition. Packed with innovative tools and advanced functionalities, this software offers a range of benefits.

  • Fully managed pub/sub messaging with A2A and A2P delivery
  • FIFO topics with strict message ordering and deduplication
  • Message filtering by attributes or payload content
  • Message archiving and replay
  • Dead-letter queues for undeliverable messages
  • SMS, mobile push, and email delivery to end users
  • Encryption in transit and at rest with AWS KMS
  • Configurable delivery retry policies
  • Integration with over 60 AWS services
  • Resource-based access policies and tagging

Amazon SNS Pricing

Here are the pricing plans for Amazon SNS. Choose the plan that best fits your requirements and budget.

Free Tier

$0

1 million requests/month

Always-free allowance covering the first 1 million SNS requests, first 100,000 HTTP/S notifications, and first 1,000 email notifications each month, on an ongoing basis.

Standard Topics

$0.50 per 1 million requests

Pay-as-you-go after free tier

Each 64 KB chunk of published or delivered data counts as one request.

FIFO Topics

$0.60 per 1 million requests

Pay-as-you-go after free tier

Messages billed in 1 KB to 256 KB increments; subscription messages billed per delivery plus a per-GB payload charge.

SMS Messaging

Varies by destination country

Pay per message

Priced separately by destination country and message type on the SNS SMS pricing page.

Amazon SNS Specifications

Get a closer look at the technical specifications and system requirements for Amazon SNS. Find out if it's compatible with your operating system and other software.

Software Tagline :
Fully managed pub/sub messaging for application-to-application and application-to-person notifications
Deployment :
  • cloud based
Subscription Plan :
transaction
Desktop Platforms :
  • web app
Mobile Platforms :
Language Support :
en
Target Audience :
  • startups
  • smes
  • enterprises
Available Support :
  • email
  • phone
  • tickets
  • training
Integrations :
AWS Lambda, Amazon SQS, Amazon Kinesis Data Firehose, Amazon CloudWatch, AWS KMS, AWS PrivateLink, HTTP/S endpoints, mobile push (Apple APNs, Firebase/FCM), email, SMS carriers, and over 60 AWS services
API Available :
Yes
Free Trial Available :
No
Run On Mobile Browser :
Yes
Free Plan Available :
Yes
Customization Available :
Yes

Amazon SNS Videos

Amazon SNS Screenshots

Alternatives

Explore alternative software options that can fulfill similar requirements as Amazon SNS. Evaluate their features, pricing, and user feedback to find the perfect fit for your needs.

Amazon SNS Comparisons

Compare Amazon SNS with other similar options available. Explore the key differences to see why it's the top choice for businesses and individuals.

Overall Amazon SNS Reviews

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Amazon SNS Pros and Cons

Amazon SNS FAQs

A fully managed pub/sub messaging service that uses push-based delivery so subscribers do not need to poll for updates, unlike a queue-based service.

SNS pushes time-critical messages out to multiple subscribers at once, while SQS is a polling-based message queue for a single consumer type. The two are often combined for fan-out delivery.

HTTP/HTTPS endpoints, email, SMS text messages, mobile push notifications, and Amazon SQS queues, with access controlled per topic.

FIFO topics guarantee ordered delivery to Amazon SQS FIFO queues, which suits use cases like financial transactions and inventory updates that require strict sequencing.

Standard messages support up to 256 KB of data; larger payloads are split into multiple billable messages. SMS messages have their own, much smaller size limit.

SNS applies a multi-phase retry policy with escalating delays, and messages can be routed to a dead-letter queue after retries are exhausted.