Azure SignalR Service vs Pusher
Discover how Azure SignalR Service compares to Pusher, and understand which is right for your use case, based on dimensions such as core features, pricing, reliability, and scalability.
What is Azure SignalR Service?
Azure-hosted, fully managed realtime framework built on top of an open-source software library for Microsoft ASP.NET. It allows server code to send asynchronous notifications to client-side web applications. The library includes server-side and client-side JavaScript components.
What is Pusher?
Pusher is a first-generation pub/sub messaging service that provides bi-directional hosted APIs for adding realtime features to applications. Pusher offers two products:
- Channels - Build scalable realtime features
- Beams - Programmatic push notifications
Compare Azure SignalR Service and Pusher
Let’s compare Azure SignalR Service and Pusher, 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 Azure SignalR Service and Pusher. The content was last updated on 1 Aug 2024 for Azure SignalR Service and on 1 Aug 2024 for Pusher. 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 If you do find anything incorrect or out of date, then please contact us.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. | Azure SignalR Service Partial Azure SignalR does not provide pub/sub capabilities by itself but you can use it in combination with backplanes such as Redis or Event Grid, which support the pub/sub model. | Pusher Yes |
Chat capabilities | Accelerates the time to implement rich chat experiences with features such as read receipts, typing indicators, and more. | Azure SignalR Service No Documentation references chat, but it is not clear how you would deliver it. There's no native chat capability. | Pusher No Pusher has channels which enable read receipts, but no SDK, reactions, or read-receipts built in. Read more |
Collaboration capabilities | Enables you to quickly integrate realtime collaborative features like live cursors, member location, avatar stacks, and component locking. | Azure SignalR Service No An article on-site showcases a solution idea for collaboration, but not using SignalR. | Pusher No |
State sync capabilities | Enables realtime data synchronization across devices and users, ensuring a cohesive and up-to-date user experience. | Azure SignalR Service No | Pusher |
Presence | Maintaining a view of which users are connected, and their associated metadata, enables their online status to be updated in realtime. | Azure SignalR Service Yes | Pusher Yes |
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. | Azure SignalR Service No | Pusher No |
Message interactions | Enables interaction with previously-sent messages, facilitating the implementation of features like message reactions and threads. | Azure SignalR Service No | Pusher No |
Message history | Enables clients to catch up on missed messages when inactive, ensuring a user doesn’t miss any important messages. | Azure SignalR Service No | Pusher No Pusher does not offer any message history functionality. But Cache Channels stores the last event sent to the channel - it is stored for a max of 30 min or until a new event arrives. This can be useful in some use cases. |
Push notifications | Cross-platform push notifications make it possible to deliver important and timely messages to users even when they’re inactive. | Azure SignalR Service No | Pusher Yes Pusher's product Beams is a cross-platform push notifications API. |
Message delta compression | Minimizes bandwidth and can reduce latency, particularly in scenarios where continuous updates are sent. | Azure SignalR Service No | Pusher No |
Programmatic management | Enables the automation of provisioning, management, and testing of service resources, simplifying integration with existing development workflows such as CI. | Azure SignalR Service Yes | Pusher No |
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. | Azure SignalR Service | Pusher Partial Only in 'sandbox', which is a free plan which gives you 200,000 messages and up to 100 concurrent connections per day. |
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. | Azure SignalR Service
| Pusher Pusher has free, flexible, and Enterprise plans based on number of messages and concurrent connections. See more information |
Integrations & interoperability | |||
SDKs | Supporting multiple languages and platforms offers greater flexibility when building cross-platform realtime apps. | Azure SignalR Service
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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. | Azure SignalR Service
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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. | Azure SignalR Service
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Streaming & queueing | Provides a dependable method to reroute messages from the service to third-party streams and queues for further processing. | Azure SignalR Service No | Pusher No |
Observability services | Enables realtime monitoring and troubleshooting by offering insights into service behavior directly in your observability platform of choice. | Azure SignalR Service Yes | Pusher Yes Pusher provides Datadog and Librato integrations. |
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. | Azure SignalR Service While Azure SignalR itself doesn't have specific integration points in CI/CD tools, the broader Azure ecosystem and the Azure CLI or PowerShell can be leveraged in your CI/CD scripts to manage Azure SignalR resources. | Pusher No |
Quality of Service | |||
Scalability | Scalability is vital as it ensures the service can handle increased data load or users without compromising performance. | Azure SignalR Service No metrics available | Pusher No scalability metrics published. |
Guaranteed message delivery | Ensures messages are never lost during transmission, even in the presence of network disruptions. | Azure SignalR Service No | Pusher 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. | Azure SignalR Service No | Pusher No |
Exactly-once message delivery | Guarantees that each message is processed exactly once, preventing data inconsistencies that can arise from duplicate processing or missing messages. | Azure SignalR Service No | Pusher 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. | Azure SignalR Service
| Pusher Channels SLA: API will be made available with an Annual API Uptime Percentage of 99.95%. Pusher will use commercially reasonable efforts to make Pusher Beams available with an Annual Uptime Percentage of > 99.95%. Read more |
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. | Azure SignalR Service Yes | Pusher 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. | Azure SignalR Service Yes | Pusher No Pusher apps are located in a single data center rather than distributed across multiple data centers. Any latency issues that occur in that data center will affect all apps hosted there. |
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. | Azure SignalR Service No | Pusher No Pusher apps are located in a single data center rather than distributed across multiple data centers. If that data center goes offline then all apps hosted there are affected. |
Latency | Low latency is crucial for realtime apps as it ensures swift and efficient data transmissions, providing a smoother and more responsive user experience. | Azure SignalR Service Unknown | Pusher Not shared. Because apps exist in only one region, message latencies increase for clients the further they are from your chosen data center. |
Security & compliance | |||
API key authentication | Simplifies the authentication code on trusted servers compared to requesting, managing, and refreshing tokens. | Azure SignalR Service Yes | Pusher Yes |
Token-based authentication | Provides a means to securely authenticate user devices against your user management system. | Azure SignalR Service Yes | Pusher Yes |
Single Sign-On (SSO) authentication | SSO streamlines login processes, boosts security by minimizing password use, and meets compliance needs for secure data access management. | Azure SignalR Service Yes | Pusher Partial For GitHub and Google. |
Rules for permissions and operations | Provides control over which users can subscribe and publish to certain channels. | Azure SignalR Service Yes | Pusher Partial Requires you to implement an endpoint they will call to check if operation is allowed. |
End-to-end encryption | Ensures that the data transmitted between the client and the API server remains confidential and secure while in transit. | Azure SignalR Service Yes | Pusher Yes |
Encryption at rest | Ensures data stored by the service is secure and compliant, while also mitigating the risks of a data breach. | Azure SignalR Service Yes | Pusher No |
Compliance | Compliance with regulations can impact your ability to meet legal obligations in your industry. | Azure SignalR Service
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Alternatives to Azure SignalR Service and Pusher
While both Azure SignalR Service and Pusher 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 Azure SignalR Service
SignalR is an open-source library that simplifies adding real-time web functionality to ASP.NET Core web apps.
Socket.IO is a library that provides realtime, bi-directional communication between clients and servers. It allows the management of connections, sending and receiving messages, and more.
Microsoft Azure Web PubSub is a fully managed PubSub offering. It is available as part of Microsoft's Azure Cloud Computing platform.
Alternatives to Pusher
Firebase Realtime Database is a cloud-hosted database by Google, allowing developers to build realtime applications for web and mobile.
PubNub is a developer API platform that powers the realtime infrastructure in apps to build engaging Virtual Spaces where online communities can connect.
OneSignal is a customer engagement platform that offers push notifications, messages, and email sends for businesses to manage communication with their users.
Discover how Azure SignalR Service and Pusher stack up against Ably
Ably is the definitive realtime experience platform of the internet. See how we compare to Azure SignalR Service and Pusher on key dimensions such as core features, pricing, integrations, QoS, performance, and security and compliance.
Try Ably for free to discover the benefits for yourself
Ably has built reliable realtime infrastructure so you don’t have to. On our free plan you benefit from:
- 6M monthly messages
- 200 concurrent channels
- 200 concurrent connections