Pusher vs TalkJS
Discover how Pusher compares to TalkJS, and understand which is right for your use case, based on dimensions such as scalability, pricing, security, and their chat features.
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
What is TalkJS?
TalkJS provides a chat API with customizable UIs for 1-on-1 messaging, group chats. It includes notifications and supports integration across web and mobile platforms via SDKs.
Compare Pusher and TalkJS
Let’s compare Pusher and TalkJS, looking at key elements of their offering such as their scalability, pricing, security and chat feature set.
| Scalability | |||
Concurrent connections | Number of users that can be supported in a single chat. | Pusher Unknown. | TalkJS 300 users can be supported in a single chat. Limits for Enterprise plan are unknown. |
Connections | Number of connections that can be handled across the platform. | Pusher 30k per month Growth Plus plan - custom plans may support higher number of connections. Pusher pricing page | TalkJS 25,000 connections can be handled across the platform. Users would need to opt for the Enterprise plan for higher rates. |
Channels / rooms | Number of channels or rooms that can be handled across the platform. | Pusher Unlimited. | TalkJS Unlimited. |
Messages | Number of messages that can be handled across the platform. | Pusher | TalkJS Unlimited. |
Message throughput | Number of messsages that can be published per second. | Pusher 10 messages per second. Limited to 10 messages per second per client connection. | TalkJS 9 messages/second rate limit. Read more |
| Data integrity | |||
Guaranteed message delivery | Ensures messages are never lost during transmission, even in the presence of network disruptions. | Pusher No | TalkJS 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. | Pusher No | TalkJS 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. | Pusher No | TalkJS Yes TalkJS guarantees that messages are sent exactly-once via an idempotency key regardless of any number of retries. |
| 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. | 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 | TalkJS TalkJS guarantees an uptime of 99.9%/month, only available for Enterprise customers. |
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. | Pusher No | TalkJS No TalkJS servers are only located in the European Union. |
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. | 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. | TalkJS |
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. | 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. | TalkJS 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. | Pusher Not shared. Because apps exist in only one region, message latencies increase for clients the further they are from your chosen data center. | TalkJS Unknown. |
Server-side batching | Reduces the overall message count, lowers costs, and mitigates the risk of hitting rate limits during high-throughput scenarios. | Pusher Partial Pusher provides a Batch Events API for server-side batching, allowing developers to send multiple events in a single API call. | TalkJS No |
Connection state recovery | Automatically re-establish failed connections and replay missed messages. | Pusher Partial Pusher provides some level of connection state recovery but doesn't offer built-in, automatic recovery. | TalkJS No |
| Ecosystem support | |||
Supported realtime protocols | Support for multiple protocols provides the flexibility to choose a protocol that best suits your project’s requirements. | Pusher
| TalkJS WebSocket only. |
Supported languages | Supporting multiple languages and platforms offers greater flexibility when building cross-platform realtime apps. | Pusher
| TalkJS
|
| Chat room types | |||
Multi-type chat support (group, DM, supergroups) | Enables chat experiences to be tailored to various user needs, from one-on-one to large, scalable group discussions. | Pusher Pusher does not offer predefined features for chat rooms, but you can use Pusher Channels API to build:
| TalkJS TalkJS JavaScript SDK allows you to implement three chat room types:
|
| Chat room management | |||
Presence | Maintaining a view of which users are connected, and their associated metadata, enables their online status to be updated in realtime. | Pusher Yes | TalkJS 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. | Pusher | TalkJS No |
Typing indicators | Show when others are typing in a chat room, enhancing realtime communication flow. | Pusher Partial Pusher does not provide built-in typing indicators natively, but you can implement typing indicators using Pusher Channels or Presence Channels by sending custom events to notify users when someone is typing. | TalkJS Yes |
Room reactions | Customize the chat environment with reactions and other shared room states. | Pusher Partial Pusher does not provide built-in support for room reactions or managing room states directly. However, you can implement these features using Pusher Channels by creating your custom logic. | TalkJS No |
| Chat message attributes | |||
Message edits and deletes | Allow users to modify or remove messages. | Pusher No | TalkJS Yes You can delete or edit messages using TalkJS UI and configure which roles are allowed to do these operations. |
Message reactions & emoticons | Boost engagement by enabling users to quickly express emotions or feedback on messages. | Pusher No | TalkJS Yes |
Rich text support | Enhance messages with rich text formatting in chat. | Pusher No | TalkJS Yes |
Media attachments | Support for sharing images, videos, and files in chat. | Pusher No | TalkJS Yes Read more |
| Chat application and user state | |||
In-app notifications | Notify users of important events from other chat rooms without them leaving the current chat, keeping them engaged and informed. | Pusher Yes | TalkJS No |
Role-based permissions | Control user roles and permissions to ensure proper access and moderation. | Pusher Partial Pusher itself does not directly provide built-in role-based permissions. However, you can implement it in Pusher Channels using Pusher's user authentication and authorizing mechanics. Read more | TalkJS Yes TalkJS allows you to select the appropriate roles and permissions of a user from the Chat UI. The user can have a single role at a time within the chat. Read more |
UI kit | Customizable UI elements for a seamless chat integration. | Pusher No | TalkJS Yes TalkJS provides pre-built UI to help you add chat easily. |
| Storage and history | |||
Synchronous - automated moderation | Detect and manage harmful content automatically, before the message is broadcast to participants. | Pusher No | TalkJS No |
Asynchronous - automated moderation | Detect and manage harmful content automatically, after the message is broadcast to participants. | Pusher No | TalkJS No |
Manual moderation via dashboards | Tools for moderators to detect harmful messages and manage them effectively. | Pusher No | TalkJS Yes The TalkJS dashboard enables you to manually address and remove any unwanted content that may appear in your chats. |
Ban users | Remove problematic users from the chat to maintain a healthy environment. | Pusher Partial Pusher supports banning users through its server SDKs but only terminates the user’s active connections. | TalkJS Yes TalkJS allows you to remove users in a conversation via its REST API. After you have removed a user from a conversation, you can ban them by setting up identity verification and turning off browser synchronization. Read more |
| Dev tools | |||
Programmatic management | Enables the automation of provisioning, management, and testing of service resources, simplifying integration with existing development workflows such as CI. | Pusher Yes Pusher supports programmatic management of its services via APIs, Webhooks, SDKs, and serverless functions for Pusher Channels. Read more | TalkJS Yes TalkJS supports programmatic management through its API. |
| Pricing | |||
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. | Pusher Pusher has free, flexible, and Enterprise plans based on number of messages and concurrent connections. See more information | TalkJS |
Pricing illustration | An example price based on 5 live streaming chat events and 50K attendees. | Pusher $1199 minimum. Could not calculate exactly. Would need a custom enterprise plan as Growth Plan Plus only supports 90M messages a day. | TalkJS It isn't clear if 25K users could be supported in a single live stream chat. TalkJS restrictions would mean only 1250 could 'participate' in an event at any one time. |
Free plan | With a free plan, you can test the service’s functionality and compatibility with your project before committing to a paid plan. | Pusher Partial Only in 'sandbox', which is a free plan which gives you 200,000 messages and up to 100 concurrent connections per day. | TalkJS Yes |
Pricing plans | The pricing plans offered by cost. | Pusher Pricing is based around the number of messages per day and concurrent connections.
Source: Pusher pricing page | TalkJS
|
| Support for additional realtime features | |||
Pub/Sub messaging | Reduces communication code complexity, simplifying the process of building highly functional and architecturally complex realtime apps. | Pusher Yes | TalkJS No |
Collaboration capabilities | Enables you to quickly integrate realtime collaborative features like live cursors, member location, avatar stacks, and component locking. | Pusher No | TalkJS No |
Database sync capabilities | Database sync capabilities enable realtime updates between your database and UI, ensuring the UI reflects changes in the database instantly, with data consistency, and without the need for polling. | Pusher No | TalkJS No |
Notifications | Send notifications directly to users screens, from chat responses to news alerts, or game updates, whether or not an application is open and running. | Pusher Yes Pusher supports push notifications through its Pusher Beams API. | TalkJS Yes TalkJS supports email notifications, SMS notifications, browser notifications, and mobile push notifications. |
Asset tracking | State-of-the-art asset tracking across last mile logistics, food delivery applications, and urban mobility services. | Pusher Yes Pusher supports asset tracking. Pusher Channels can be used to display the current location of assets on a map in realtime. | TalkJS No |
| Integrations & interoperability | |||
AI models | Allows you to integrate AI models, like GPT, into your app. | Pusher No | TalkJS No |
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. | Pusher Yes | TalkJS No |
Streaming & queueing | Provides a dependable method to reroute messages from the service to third-party streams and queues for further processing. | Pusher No | TalkJS No |
Observability services | Enables realtime monitoring and troubleshooting by offering insights into service behavior directly in your observability platform of choice. | Pusher Yes Pusher provides Datadog and Librato integrations. | TalkJS No |
| Security & compliance | |||
API key authentication | Simplifies the authentication code on trusted servers compared to requesting, managing, and refreshing tokens. | Pusher Yes | TalkJS No TalkJS does not rely on API key authentication to secure user sessions or communication with its APIs. Instead, it uses token-based authentication (JWT). |
Single Sign-On (SSO) authentication | SSO streamlines login processes, boosts security by minimizing password use, and meets compliance needs for secure data access management. | Pusher Yes Pusher supports authentication with Github SSO. | TalkJS No TalkJS does not directly support Single Sign-On (SSO) authentication. Instead, it uses JSON Web Tokens (JWT) for authentication. Read more |
Rules for permissions and operations | Provides control over which users can subscribe and publish to certain channels. | Pusher Partial Pusher provides a mechanism for implementing rules and permissions primarily through its Channels service. It requires you to implement an endpoint which they will call to check if an operation is allowed. | TalkJS Yes 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. | Pusher Yes | TalkJS No |
Compliance | Compliance with regulations can impact your ability to meet legal obligations in your industry. | Pusher
| TalkJS TalkJS only complies with the GDPR by acting as a data processor. TalkJS privacy page |
Disclaimer: This comparison was created based on documentation and resources freely available online about Pusher and TalkJS. The content was last updated on 8 May 2025 for Pusher and on 1 May 2025 for TalkJS. Be sure to double-check everything before you make any decisions. If you do find anything incorrect or out of date, then please let us know.
Alternatives to Pusher and TalkJS
While both Pusher and TalkJS 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 Pusher
Ably is the definitive realtime experience platform of the internet. Serving more WebSocket connections than any other pub/sub platform on earth. Businesses trust us to power their critical applications - reliably, securely and at serious scale.
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.
Alternatives to TalkJS
Stream is a realtime chat and activity feeds platform, offering easy integration through APIs and SDKs for enhanced user engagement
CometChat provides rich messaging solutions for apps with features like text, voice, video chat, robust SDKs, and UI kits.
Sendbird offers APIs and SDKs for live chat, realtime messaging, push notifications, and calls with WebSocket connections, UI kits, and backend integrations.
Discover how Pusher and TalkJS stack up against Ably
Ably is the definitive realtime experience platform of the internet. See how we compare to Pusher and TalkJS 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
