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Firebase vs Supabase Realtime

Discover how Firebase compares to Supabase Realtime, 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.

Supabase Realtime

What is Supabase Realtime?

Supabase Realtime is a globally distributed network of real-time servers. Supabase Realtime is built on top of PostgreSQL database and enables developers to build applications with real-time data synchronization capabilities.

Compare Firebase and Supabase Realtime

Let’s compare Firebase and Supabase Realtime, 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 Supabase Realtime. The content was last updated on 18 Nov 2024 for Firebase and on 9 Oct 2024 for Supabase Realtime. 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 If you do find anything incorrect or out of date, then please contact us.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.

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Supabase Realtime

Yes

Supabase's Broadcast feature supports Pub/Sub messaging, allowing clients to publish messages to specific channels and have those messages received by all subscribers.

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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.

Supabase Realtime

Yes

Supabase supports chat capabilities through Broadcast for typing indicators, Presence, and Postgres Changes for messages history filesharing and emojis.

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Collaboration capabilities

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

Firebase

Yes

Supabase Realtime

Yes

You can build collaboration capabilities like live cursors and profile stacks using the Presence, Postgres Changes, and Broadcast features of Supabase.

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.

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Supabase Realtime

Yes

Supabase supports state sync with its Postgres Changes feature to listen to changes in the database. When the database updates, changes are pushed to the client in real time.

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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.

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Supabase Realtime

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.

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.

Supabase Realtime

Yes

Supabase Realtime's Presence feature enables occupancy tracking by allowing you to monitor user joins/leaves in channels, retrieve online user lists, and receive real-time updates on occupancy changes.

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.

Supabase Realtime

Yes

Supabase enables message interactions using Presence for tracking, Postgres Changes for listening to changes, and Broadcast for custom events. These features can be used to build message interactions like reactions.

Message history

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

Firebase

No

Supabase Realtime

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.

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Supabase Realtime

No

Supabase supports push notifications only with the integration of external services.

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Message delta compression

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

Firebase

No

Supabase Realtime

No

Supabase uses the Brotli compression algorithm for all responses, rather than delta compression.

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.

Supabase Realtime

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.

Firebase

Yes

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

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Supabase Realtime

Yes

Supabase offers a free plan with the a limit of 200 concurrent clients and 100 messages per second.

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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.
Supabase Realtime

Supabase uses a tiered pricing model based on monthly active users (MAUs):

  • Free tier: Basic features with limits (200 concurrent clients, 100 messages per second)
  • Pro tier ($25/month): Higher limits and additional features (500 concurrent clients, 500 messages per second)
  • Team tier ($599/month)
  • Enterprise tier: Custom pricing with advanced features, dedicated support, and higher limits tailored to business needs.
Read more
Integrations & interoperability
SDKs

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

Firebase
  • iOS
  • Android
  • Web
  • C++
  • Unity
Supabase Realtime
  • JavaScript
  • Python
  • Dart
  • C#
  • Kotlin
  • Swift
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)
Supabase Realtime
  • WebSockets
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
Supabase Realtime
  • Supabase Edge Functions
Streaming & queueing

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

Firebase

Yes

Supabase Realtime

Yes

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.

Supabase Realtime

Partial

Supabase supports integration with observability tools like Sentry, New Relic, and Supabase-Grafana.

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
Supabase Realtime

Yes

Supports:

  • GitHub Actions
  • GitLab CI
  • Bitbucket Pipelines
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.

Supabase Realtime

Supabase can handle up to 10,000 concurrent clients, 2,500 channel joins per second, and 2,500 messages per second.

Read more
Guaranteed message delivery

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

Firebase

No

Supabase Realtime

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

Supabase Realtime

Yes

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

Supabase Realtime

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%.

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Supabase Realtime

99.0%.

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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

Yes

Firebase benefits from Google's global edge network.

Supabase Realtime

Yes

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.

Supabase Realtime

Yes

Multi-region data replication is natively supported in Supabase through their Publications feature.

Read more
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.

Supabase Realtime

Yes

Supabase provides a globally distributed cluster of realtime servers. The realtime servers are designed to be highly available and fault-tolerant.

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.

Supabase Realtime

Unknown.

Security & compliance
API key authentication

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

Firebase

No

Supabase Realtime

Yes

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
Supabase Realtime

Yes

Supported with JSON Web Tokens (JWTs).

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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
Supabase Realtime

Yes

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.

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Supabase Realtime

Yes

Supabase offers the Row Level Security (RLS) system, allowing fine-grained access control at the database level.

End-to-end encryption

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

Firebase

No

Data in transit is encrypted using HTTPS in all Firebase services, but this does not include end-to-end encryption.

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Supabase Realtime

Yes

Data in transit is encrypted via TLS.

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.

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Supabase Realtime

Yes

Supabase encrypts all users' data at rest using the AES-256 standard.

Compliance

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

Firebase
  • SOC1
  • SOC2
  • SOC3
  • ISO 27001
  • GDPR
  • CCPA
Supabase Realtime
  • HIPAA
  • SOC2

Alternatives to Firebase and Supabase Realtime

While both Firebase and Supabase Realtime 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 Supabase Realtime

Firebase logo

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

tech provider image

Prisma Pulse provides realtime data synchronization and monitoring across third-party databases. Only supports PostgresSQL databases.

tech provider image

Hasura is an open-source engine that provides instant GraphQL APIs that integrate with your backend.

See more alternatives to Supabase Realtime

Discover how Firebase and Supabase Realtime stack up against Ably

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