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Firebase vs SignalR

Discover how Firebase compares to SignalR, and understand which is right for your use case, based on dimensions such as core features, pricing, reliability, and scalability.

Firebase logo

What is Firebase?

Firebase is a cloud-native backend by Google that allows developers to build mobile and web applications. Firebase services include Firebase Realtime data, Firestore database, authentication, and Firebase Cloud Messaging (FCM), among others.

Suitable for:

  • Realtime chat applications
  • Online collaborative apps
  • Multiplayer gaming
  • Realtime analytics
  • Monitoring services

Not suitable for:

  • Complex queries
  • Large data sets

Pros:

  • Generous free tier
  • Multiple SDKs
  • Robust documentation

Cons:

  • Unexpected cost surge
  • Google product lifespan concerns
  • Geo-blocking
  • Data privacy concerns
SignalR

What is SignalR?

SignalR is an open-source library that simplifies adding real-time web functionality to apps. It is integrated into the ASP.NET Core web development stack and provides a mechanism for two-way remote procedure calls between client and server.

Suitable for:

  • Apps that require high frequency updates from the server, like gaming, social networks, voting, auction, maps, and GPS apps.
  • Dashboards and monitoring apps
  • Collaborative apps
  • Apps that require notifications

Not suitable for:

-Stateless applications -Apps with high scalability requirements -Apps with high throughput requirements

Pros:

  • Open source
  • Free to use

Cons:

  • Self-hosted
  • Complex to manage

Compare Firebase and SignalR

Let’s compare Firebase and SignalR, 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 Firebase and SignalR. The content was last updated on 10 Oct 2024 for Firebase and on 26 Sept 2024 for SignalR. 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 If you do find anything incorrect or out of date, then please contact us.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.

Firebase

Partial

Firebase does not natively support Pub/Sub messaging. However, this can be implemented with Google's Pub/Sub service.

Read more
SignalR

Partial

The SignalR SDKs do not provide a topic abstraction out of the box, but they provide a "groups" abstraction which lets you implement something similar.

Read more
Chat capabilities

Accelerates the time to implement rich chat experiences with features such as read receipts, typing indicators, and more.

Firebase

Yes

You can build chat capabilities on top of Firebase's Realtime Database.

SignalR

Yes

SignalR (ASP.net) allows you to implement chat capabilities.

Read more
Collaboration capabilities

Enables you to quickly integrate realtime collaborative features like live cursors, member location, avatar stacks, and component locking.

Firebase

Yes

SignalR

No

State sync capabilities

Enables realtime data synchronization across devices and users, ensuring a cohesive and up-to-date user experience.

Firebase

Yes

The Firebase Realtime Database lets you store and sync data between your users in real time.

Read more
SignalR

No

Presence

Maintaining a view of which users are connected, and their associated metadata, enables their online status to be updated in realtime.

Firebase

Yes

Firebase Realtime Database natively supports presence.

Read more
SignalR
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.

Firebase

Partial

Firebase does not have built-in support for occupancy tracking. However, occupancy tracking functionality can be built on top of the Firebase Realtime Database.

SignalR

No

Message interactions

Enables interaction with previously-sent messages, facilitating the implementation of features like message reactions and threads.

Firebase

Partial

Message interactions are not natively supported in Firebase. However, you can programmatically build interactions on top of Firebase's Realtime Database.

SignalR

No

Message history

Enables clients to catch up on missed messages when inactive, ensuring a user doesn’t miss any important messages.

Firebase

No

SignalR

No

Push notifications

Cross-platform push notifications make it possible to deliver important and timely messages to users even when they’re inactive.

Firebase

Yes

You can create, send, and monitor push notifications using Firebase Cloud Messaging.

Read more
SignalR

No

Microsoft Azure Web PubSub has no native push notification functionality. Microsoft has a separate service for this - Azure Notification Hubs.

Read more
Message delta compression

Minimizes bandwidth and can reduce latency, particularly in scenarios where continuous updates are sent.

Firebase

No

SignalR

No

Programmatic management

Enables the automation of provisioning, management, and testing of service resources, simplifying integration with existing development workflows such as CI.

Firebase

Yes

Firebase projects can be managed programmatically using the Firebase Management API.

SignalR

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.

Firebase

Yes

The Spark plan (free plan) realtime database is limited to 100 simultaneous connections and 1 GB of storage.

Read more
SignalR

Yes

Self-hosted and free.

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.

Firebase

Firebase has a free plan and a pay-as-you-go plan:

  • Free (Spark) plan: Limited to 100 simultaneous connections and 1 GB of storage.
  • PAYG (Blaze) plan: 1 GB of storage is priced at $5. Supports multiple databases per project.
SignalR

N/A (self-hosted)

Integrations & interoperability
SDKs

Supporting multiple languages and platforms offers greater flexibility when building cross-platform realtime apps.

Firebase
  • iOS
  • Android
  • Web
  • C++
  • Unity
SignalR

Client SDKs:

  • ASP.NET Core
  • Java
  • JavaScript (browser, Node)
  • C++ (experimental)
  • Swift (experimental)

Server SDKs:

  • ASP.NET Core
Supported realtime protocols

Support for multiple protocols provides the flexibility to choose a protocol that best suits your project’s requirements.

Firebase
  • WebSockets
  • Server-sent events (SSEs)
SignalR
  • WebSockets
  • Server-sent events (SSEs)
  • Long polling
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.

Firebase
  • Cloud Functions for Firebase
SignalR

None.

Streaming & queueing

Provides a dependable method to reroute messages from the service to third-party streams and queues for further processing.

Firebase

Yes

SignalR

No

Observability services

Enables realtime monitoring and troubleshooting by offering insights into service behavior directly in your observability platform of choice.

Firebase

Yes

Using Firebase Performance Monitoring you can monitor your application performance based on location, device, or version.

SignalR

Partial

SignalR is integrated with ASP.net Core metrics, and these can be reported to a monitoring system at regular intervals.

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.

Firebase

Yes

Supports:

  • Jenkins
  • Buddy CI/CD
  • Google Cloud Build
  • GitHub Workflow
SignalR

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.

Firebase

Firebase Realtime Database is limited to 200,000 simultaneous connections, 1000 Cloud Functions per write (500 for v2 per region), 1 MB event size, and 10 MB/sec data transfer to Cloud Functions.

SignalR

N/A (self-hosted)

Guaranteed message delivery

Ensures messages are never lost during transmission, even in the presence of network disruptions.

Firebase

No

SignalR

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.

Firebase

No

SignalR

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.

Firebase

No

SignalR

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.

Firebase

99.95%.

Read more
SignalR

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.

Firebase

No

SignalR

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.

Firebase

No

Multi-region data replication is currently not supported in Firebase Realtime Database, but it is supported in Firestore databases.

SignalR

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.

Firebase

No

Each Realtime Database instance is tied to a single region chosen at the time of creation.

SignalR

No

Latency

Low latency is crucial for realtime apps as it ensures swift and efficient data transmissions, providing a smoother and more responsive user experience.

Firebase

Unknown.

SignalR

N/A (self-hosted)

Security & compliance
API key authentication

Simplifies the authentication code on trusted servers compared to requesting, managing, and refreshing tokens.

Firebase

No

SignalR

No

Token-based authentication

Provides a means to securely authenticate user devices against your user management system.

Firebase

Yes

Supported with JSON Web Tokens (JWTs).

Read more
SignalR

Yes

It is possible to use token based authentication with ASP.net Core.

Read more
Single Sign-On (SSO) authentication

SSO streamlines login processes, boosts security by minimizing password use, and meets compliance needs for secure data access management.

Firebase

Yes

SSO in a Firebase application can be implemented using SAML (Security Assertion Markup Language).

Read more
SignalR

Yes

This is possible in conjunction with an identity platform like Microsoft Entra.

Read more
Rules for permissions and operations

Provides control over which users can subscribe and publish to certain channels.

Firebase

Yes

Using Firebase Realtime Database Security Rules you can set who has access to your database.

Read more
SignalR

Yes

You can restrict access to hubs and hub methods to users matching specific authorization policies.

Read more
End-to-end encryption

Ensures that the data transmitted between the client and the API server remains confidential and secure while in transit.

Firebase

Yes

Data in transit is encrypted using HTTPS in all Firebase services.

Read more
SignalR

No

You would need to implement this yourself.

Encryption at rest

Ensures data stored by the service is secure and compliant, while also mitigating the risks of a data breach.

Firebase

Partial

Some Firebase services are encrypted at rest while others are not. Firebase Realtime Database and Firebase Cloud Messaging are encrypted at rest.

Read more
SignalR

No

Compliance

Compliance with regulations can impact your ability to meet legal obligations in your industry.

Firebase
  • SOC1
  • SOC2
  • SOC3
  • ISO 27001
SignalR

N/A

Alternatives to Firebase and SignalR

While both Firebase and SignalR 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 Firebase

tech provider image

Supabase Realtime is a globally distributed real-time server network built on PostgreSQL, enabling developers to build applications with real-time data sync.

Pusher logo

Pusher is a first-generation pub/sub messaging service that provides bi-directional hosted APIs for adding realtime features to applications.

tech provider image

OneSignal is a customer engagement platform that offers push notifications, messages, and email sends for businesses to manage communication with their users.

See more alternatives to Firebase

Alternatives to SignalR

Socketio logo

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.

Pusher logo

Pusher is a first-generation pub/sub messaging service that provides bi-directional hosted APIs for adding realtime features to applications.

Firebase logo

Firebase Realtime Database is a cloud-hosted database by Google, allowing developers to build realtime applications for web and mobile.

See more alternatives to SignalR

Discover how Firebase and SignalR stack up against Ably

Ably is the definitive realtime experience platform of the internet. See how we compare to Firebase and SignalR 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