Amazon SNS vs Centrifugo
Discover how Amazon SNS compares to Centrifugo, and understand which is right for your use case, based on dimensions such as core features, pricing, reliability, and scalability.
What is Amazon SNS?
AWS Simple Notification Service (SNS) is a fully managed notification service thats uses the Pub/Sub model to provide message delivery from publishers to subscribers.
What is Centrifugo?
Centrifugo is an open source, language-agnostic, self-hosted pub/sub server capable of scalable realtime messaging. It uses transports like WebSockets to deliver messages to active users.
Compare Amazon SNS and Centrifugo
Let’s compare Amazon SNS and Centrifugo, looking at key dimensions such as their core features, pricing, integrations, QoS, performance, and security and compliance.
Disclaimer:This comparison was created based on documentation and resources freely available online about Amazon SNS and Centrifugo. The content was last updated on 1 Aug 2024 for Amazon SNS and on 10 Oct 2024 for Centrifugo. Be sure to double-check everything before you make any decisions. If you do find anything incorrect or out of date, then please contact us.
Core features | |||
Pub/Sub messaging | Reduces communication code complexity, simplifying the process of building highly functional and architecturally complex realtime apps. | Amazon SNS | Centrifugo Yes |
Chat capabilities | Accelerates the time to implement rich chat experiences with features such as read receipts, typing indicators, and more. | Amazon SNS Partial AWS SNS does not have in-built chat capabilities. It's primarily used for message delivery across HTTP/S, email, SMS, and Amazon SQS. You can use AWS Chatbot to enable chat in conjunction with SNS. | Centrifugo Yes |
Collaboration capabilities | Enables you to quickly integrate realtime collaborative features like live cursors, member location, avatar stacks, and component locking. | Amazon SNS No | Centrifugo No |
State sync capabilities | Enables realtime data synchronization across devices and users, ensuring a cohesive and up-to-date user experience. | Amazon SNS Partial AWS SNS notifies on changes, but does not manage state synchronization directly. | Centrifugo Yes |
Presence | Maintaining a view of which users are connected, and their associated metadata, enables their online status to be updated in realtime. | Amazon SNS No | Centrifugo Yes Read more |
Occupancy | High-level metrics about the clients currently connected to a channel make it simple to show things such as connected user count, or display which channels are the most popular. | Amazon SNS No | Centrifugo Yes |
Message interactions | Enables interaction with previously-sent messages, facilitating the implementation of features like message reactions and threads. | Amazon SNS No | Centrifugo No |
Message history | Enables clients to catch up on missed messages when inactive, ensuring a user doesn’t miss any important messages. | Amazon SNS Yes AWS SNS allows topic subscribers to retrieve (or replay) the archived messages back to a subscribed endpoint. This can be done by with the AWS API, SDK, AWS CloudFormation, and AWS Management Console. This functionality is only available for application-to-application (A2A) FIFO topics. Read more | Centrifugo |
Push notifications | Cross-platform push notifications make it possible to deliver important and timely messages to users even when they’re inactive. | Amazon SNS Yes AWS SNS specializes in delivering push notifications to mobile devices and other endpoints. | Centrifugo |
Message delta compression | Minimizes bandwidth and can reduce latency, particularly in scenarios where continuous updates are sent. | Amazon SNS No | Centrifugo Yes Centrifugo supports delta compression only in channels with recovery and positioning on. Read more |
Programmatic management | Enables the automation of provisioning, management, and testing of service resources, simplifying integration with existing development workflows such as CI. | Amazon SNS Yes | Centrifugo Yes |
Pricing | |||
Free plan | With a free plan, you can test the service’s functionality and compatibility with your project before committing to a paid plan. | Amazon SNS No AWS SNS does not offer a free tier, but has a pay-as-you-go pricing model. | Centrifugo Yes Centrifugo is open-source and free to use. |
Pricing model | The pricing model should align with your project's expected load, usage patterns, and budget in order to be cost-effective and efficient. | Amazon SNS AWS SNS has a pay-as-you-go pricing model based on usage (number of requests and messages published). Read more | Centrifugo Centrifugo's base product is free and open-source, but there is also a paid version called Centrifugo PRO. More specific pricing information is not available online; for pricing, you need to contact Centrifugo's sales team. Read more |
Integrations & interoperability | |||
SDKs | Supporting multiple languages and platforms offers greater flexibility when building cross-platform realtime apps. | Amazon SNS
| Centrifugo
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Supported realtime protocols | Support for multiple protocols provides the flexibility to choose a protocol that best suits your project’s requirements. | Amazon SNS
| Centrifugo
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Serverless functions | Enables integration with third-party cloud providers by facilitating the execution of custom code against messages to perform business logic like on-the-fly translation. | Amazon SNS None natively; serverless functions are available through integration with AWS Lambda. | Centrifugo None. |
Streaming & queueing | Provides a dependable method to reroute messages from the service to third-party streams and queues for further processing. | Amazon SNS Partial Available through Amazon SQS. | Centrifugo Yes |
Observability services | Enables realtime monitoring and troubleshooting by offering insights into service behavior directly in your observability platform of choice. | Amazon SNS Partial AWS SNS provides an integration with Amazon CloudWatch for monitoring usage and metrics. | Centrifugo Partial Centrifugo has no native observability tools, but offers integrations with monitoring tools such as Prometheus and Grafana. Read more |
CI/CD tools | Makes it possible to provision and configure service infrastructure as part of a CI or CD pipeline, enabling repeatable and reliable deployments. | Amazon SNS Yes Supports:
| Centrifugo No Self-hosted, so you will have to implement your own. |
Quality of Service | |||
Scalability | Scalability is vital as it ensures the service can handle increased data load or users without compromising performance. | Amazon SNS No published metrics are available. | Centrifugo Centrifugo is designed for high scalability; its Redis engine allows for scaling Centrifugo nodes to different machines. For specific stats on scale, you can read more in Centrifugo's scale test tutorial. |
Guaranteed message delivery | Ensures messages are never lost during transmission, even in the presence of network disruptions. | Amazon SNS No | Centrifugo No |
Guaranteed message ordering | Maintains the sequence of messages as they were sent. This is particularly important in apps where the chronological order of messages is essential for meaningful communication. | Amazon SNS No | Centrifugo Partial Centrifugo supports ordering in channels but not across channels. |
Exactly-once message delivery | Guarantees that each message is processed exactly once, preventing data inconsistencies that can arise from duplicate processing or missing messages. | Amazon SNS No AWS SNS not support exactly-once delivery semantics out of the box. It ensures at least-once delivery, but does not guarantee exactly-once delivery. | Centrifugo No |
Performance & availability | |||
Uptime Guarantee | An uptime guarantee instills confidence in the reliability of the service and protects your business from the negative impacts of downtime. | Amazon SNS 99.9%. Read more | Centrifugo N/A |
Global edge network | By bringing servers (Points of Presence, or PoP) geographically closer to the devices of end users, and routing requests to the nearest PoP, global latency is reduced to a minimum. | Amazon SNS Yes | Centrifugo No |
Multi-region data replication (message durability) | By replicating data across multiple regions, the risk of data loss or downtime is greatly mitigated since if data is lost or a server fails in one region, the information can be retrieved from another. | Amazon SNS Partial AWS SNS supports message durability through integration with other AWS services for multi-region replication. | Centrifugo No |
No single point of failure or congestion | Having no single point of failure means a system is resilient and can continue to operate even if one part fails. Avoiding a single point of congestion ensures messages flow efficiently across the system and avoids bottlenecks that could lead to performance issues under load. | Amazon SNS Yes | Centrifugo No Centrifugo relies on external systems like Redis or NATS for data storage, which may have their own failure points. |
Latency | Low latency is crucial for realtime apps as it ensures swift and efficient data transmissions, providing a smoother and more responsive user experience. | Amazon SNS Unknown. | Centrifugo N/A (self-hosted) |
Security & compliance | |||
API key authentication | Simplifies the authentication code on trusted servers compared to requesting, managing, and refreshing tokens. | Amazon SNS Yes AWS SNS uses AWS IAM for managing API key authentication. | Centrifugo Yes |
Token-based authentication | Provides a means to securely authenticate user devices against your user management system. | Amazon SNS Yes AWS SNS uses the AWS STS (Security Token Service) for token-based authentication. | Centrifugo |
Single Sign-On (SSO) authentication | SSO streamlines login processes, boosts security by minimizing password use, and meets compliance needs for secure data access management. | Amazon SNS Yes AWS SNS supports Single Sign-On (SSO) through AWS IAM and AWS SSO. | Centrifugo |
Rules for permissions and operations | Provides control over which users can subscribe and publish to certain channels. | Amazon SNS Yes AWS SNS permissions and operations can be managed through AWS IAM policies. | Centrifugo Yes Centrifugo supports permission rules for operations through its configuration. |
End-to-end encryption | Ensures that the data transmitted between the client and the API server remains confidential and secure while in transit. | Amazon SNS Yes | Centrifugo No |
Encryption at rest | Ensures data stored by the service is secure and compliant, while also mitigating the risks of a data breach. | Amazon SNS Yes AWS SNS supports encryption at rest using AWS KMS (Key Management Service). | Centrifugo No |
Compliance | Compliance with regulations can impact your ability to meet legal obligations in your industry. | Amazon SNS
| Centrifugo None |
Alternatives to Amazon SNS and Centrifugo
While both Amazon SNS and Centrifugo are worth considering as options for realtime experiences, they aren’t without their limitations. We suggest evaluating them against the following alternatives to make sure you find the right solution for your needs.
Alternatives to Amazon SNS
Google Cloud Pub/Sub is a scalable messaging service that can be used to send and receive messages from applications or services.
Azure Service Bus is a fully managed message service with message queues and Pub/Sub topics.
OneSignal is a customer engagement platform that offers push notifications, messages, and email sends for businesses to manage communication with their users.
Alternatives to Centrifugo
PubNub is a developer API platform that powers the realtime infrastructure in apps to build engaging Virtual Spaces where online communities can connect.
Pusher is a first-generation pub/sub messaging service that provides bi-directional hosted APIs for adding realtime features to applications.
Google Cloud Pub/Sub is a scalable messaging service that can be used to send and receive messages from applications or services.
Discover how Amazon SNS and Centrifugo stack up against Ably
Ably is the definitive realtime experience platform of the internet. See how we compare to Amazon SNS and Centrifugo on key dimensions such as core features, pricing, integrations, QoS, performance, and security and compliance.
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