CometChat vs Quickblox
Discover how CometChat compares to Quickblox, and understand which is right for your use case, based on dimensions such as scalability, pricing, security, and their chat features.

What is CometChat?
CometChat is a messaging platform designed for integration into various applications, offering text, voice, and video chat capabilities. It supports extensive customization through SDKs and UI kits.

What is Quickblox?
QuickBlox provides APIs and SDKs for building realtime chat, voice, and video communication apps. It includes chat UI kits, AI-powered assistants, push notifications, and custom video conferencing options.
Compare CometChat and Quickblox
Let’s compare CometChat and Quickblox, 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. | CometChat Up 100k concurrent connections can be supported. The use of certain features, such as delivery receipts, read receipts, and typing indicators, may impact these limits. For example, groups with all features enabled can accommodate up to 300 members. | Quickblox Limit on pre-enterprise plans is 25,000. There is no specified limit on Enterprise. Read more |
Connections | Number of connections that can be handled across the platform. | CometChat Up to 500k. | Quickblox Unknown. |
Channels / rooms | Number of channels or rooms that can be handled across the platform. | CometChat Unlimited. | Quickblox Unlimited. |
Messages | Number of messages that can be handled across the platform. | CometChat Unlimited. | Quickblox Unknown. |
Message throughput | Number of messsages that can be published per second. | CometChat Up to 333 messages per second. API calls for standard operations are rate limited to 20000 requests per min. | Quickblox |
Data integrity | |||
Guaranteed message delivery | Ensures messages are never lost during transmission, even in the presence of network disruptions. | CometChat No | Quickblox 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. | CometChat No | Quickblox 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. | CometChat No | Quickblox 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. | CometChat 99.99% uptime guarantee. Read more | Quickblox Unknown. |
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. | CometChat Yes Read more | Quickblox 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. | CometChat No | Quickblox 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. | CometChat No | Quickblox 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. | CometChat Under optimal test conditions, CometChat has a one-way latency of less than 50 ms response time. It is not mentioned what its roundtrip latency is. Read more | Quickblox Unknown. |
Server-side batching | Reduces the overall message count, lowers costs, and mitigates the risk of hitting rate limits during high-throughput scenarios. | CometChat No | Quickblox No |
Connection state recovery | Automatically re-establish failed connections and replay missed messages. | CometChat Yes CometChat supports connection state recovery, monitoring realtime connection status to its WebSocket servers. If disconnected, the SDK auto-reconnects, indicating "connecting" and "connected" states. Read more | Quickblox Yes QuickBlox Chat SDKs support automatic reconnection and offline message queuing, which ensures that when the connection is lost, messages are held on the server and delivered once the connection is re-established. Read more |
Ecosystem support | |||
Supported realtime protocols | Support for multiple protocols provides the flexibility to choose a protocol that best suits your project’s requirements. | CometChat WebSocket. | Quickblox
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Supported languages | Supporting multiple languages and platforms offers greater flexibility when building cross-platform realtime apps. | CometChat CometChat supports several programming languages for effective integration with CometChat's SDKs and APIs:
| Quickblox QuickBlox uses multiple programming languages for its UI kits and SDKs, including:
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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. | CometChat
| Quickblox
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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. | CometChat Yes CometChat supports user presence out-of-the-box through CometChat SDKs and its UI kits. The SDKs include options for subscribing to presence updates to all users, specific roles, or friends. | Quickblox Yes QuickBlox SDK sends application-level pings to a user or server, allowing you to track user presence updates and check user status. 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. | CometChat No | Quickblox No |
Typing indicators | Show when others are typing in a chat room, enhancing realtime communication flow. | CometChat Yes | Quickblox Yes |
Room reactions | Customize the chat environment with reactions and other shared room states. | CometChat No | Quickblox No |
Chat message attributes | |||
Message edits and deletes | Allow users to modify or remove messages. | CometChat Yes | Quickblox Yes |
Message reactions & emoticons | Boost engagement by enabling users to quickly express emotions or feedback on messages. | CometChat Yes | Quickblox No |
Rich text support | Enhance messages with rich text formatting in chat. | CometChat Yes | Quickblox Yes QuickBlox UI kits support text formatting for text customization directly within the UI Kit components. Read more |
Media attachments | Support for sharing images, videos, and files in chat. | CometChat Yes CometChat in-app messaging allows users to send and receive various documents and multimedia files through its SDKs and UI kits. Read more | Quickblox Yes QuickBlox provides file-sharing functionality through its iOS, Android, and React UI kits. Its Chat API also allows file uploads but doesn't offer a dedicated "media attachment" feature. 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. | CometChat Yes CometChat supports in-app notifications through CometChat's push notification service. | Quickblox No |
Role-based permissions | Control user roles and permissions to ensure proper access and moderation. | CometChat Yes | Quickblox Partial QuickBlox supports role-based permissions to some extent. However, the permissions are limited in scope as they primarily cover basic chat and user management actions. Read more |
UI kit | Customizable UI elements for a seamless chat integration. | CometChat Yes CometChat supports UI kits for:
| Quickblox Yes |
Storage and history | |||
Synchronous - automated moderation | Detect and manage harmful content automatically, before the message is broadcast to participants. | CometChat Yes | Quickblox Yes |
Asynchronous - automated moderation | Detect and manage harmful content automatically, after the message is broadcast to participants. | CometChat Yes | Quickblox No |
Manual moderation via dashboards | Tools for moderators to detect harmful messages and manage them effectively. | CometChat Yes CometChat lets human experts handle complex moderation cases. It allows users to set rules that flag borderline content for human review. | Quickblox Partial QuickBlox Trust and Safety (TnS) chat moderation is only available for Enterprise plan users. Read more |
Ban users | Remove problematic users from the chat to maintain a healthy environment. | CometChat Yes | Quickblox Yes |
Dev tools | |||
Programmatic management | Enables the automation of provisioning, management, and testing of service resources, simplifying integration with existing development workflows such as CI. | CometChat Yes | Quickblox Yes |
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. | CometChat CometChat pricing is based on the number of MAUs. Overages apply for additional MAU's and peak concurrent connection - over set quota. CometChat pricing page | Quickblox Monthly subscription. QuickBlox's pricing is based on the total number of users registered in your app, whether they are active or not. Read more |
Pricing illustration | An example price based on 5 live streaming chat events and 50K attendees. | CometChat $24,419 Base price - $669 Overages per additional concurrent user over 1250 - $23,750 Note: Assumes same users attend each event, to keep MAU at minimum | Quickblox Because non-Enterprise Quickblox only supports up to 25k concurrent connections, we are unable to provide a scaled pricing illustration. |
Free plan | With a free plan, you can test the service’s functionality and compatibility with your project before committing to a paid plan. | CometChat Yes Free for up to 100 users. | Quickblox |
Pricing plans | The pricing plans offered by cost. | CometChat
Overages:
| Quickblox QuickBlox's pricing is based on the total number of users registered in your app, whether they are active or not: Starter: $107/month for up to 10,000 active/inactive registered users. Growth: $269/month for up to 25,000 active/inactive registered users. HIPAA Cloud: $430/month for up to 20,000 active/inactive registered users. Enterprise: From $647 for a custom number of total registered users. :cta:Learn more: |
Support for additional realtime features | |||
Pub/Sub messaging | Reduces communication code complexity, simplifying the process of building highly functional and architecturally complex realtime apps. | CometChat No | Quickblox No |
Collaboration capabilities | Enables you to quickly integrate realtime collaborative features like live cursors, member location, avatar stacks, and component locking. | CometChat Yes CometChat offers collaboration capabilities with tools like polls, whiteboards, and collaborative documents. | Quickblox 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. | CometChat No | Quickblox 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. | CometChat Yes | Quickblox Yes QuickBlox supports push notifications for iOS and Android apps by integrating with FCM and APNs. Read more |
Asset tracking | State-of-the-art asset tracking across last mile logistics, food delivery applications, and urban mobility services. | CometChat No | Quickblox No |
Integrations & interoperability | |||
AI models | Allows you to integrate AI models, like GPT, into your app. | CometChat | Quickblox 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. | CometChat No | Quickblox No |
Streaming & queueing | Provides a dependable method to reroute messages from the service to third-party streams and queues for further processing. | CometChat No | Quickblox No |
Observability services | Enables realtime monitoring and troubleshooting by offering insights into service behavior directly in your observability platform of choice. | CometChat No | Quickblox No |
Security & compliance | |||
API key authentication | Simplifies the authentication code on trusted servers compared to requesting, managing, and refreshing tokens. | CometChat Yes | Quickblox 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. | CometChat Yes | Quickblox |
Rules for permissions and operations | Provides control over which users can subscribe and publish to certain channels. | CometChat Yes CometChat implements rules for permissions and user control. It features role-based permissions that allow you to manage user actions. | Quickblox Yes |
End-to-end encryption | Ensures that the data transmitted between the client and the API server remains confidential and secure while in transit. | CometChat Yes CometChat implements end-to-end encryption using Virgil E3Kit. | Quickblox No QuickBlox does not natively provide E2EE for messaging out of the box. Its realtime chat is secured through TLS to protect data in transit. |
Compliance | Compliance with regulations can impact your ability to meet legal obligations in your industry. | CometChat CometChat is compliant with four security standards:
| Quickblox |
Disclaimer: This comparison was created based on documentation and resources freely available online about CometChat and Quickblox. The content was last updated on 1 May 2025 for CometChat and on 16 May 2025 for Quickblox. 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 CometChat and Quickblox
While both CometChat and Quickblox 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 CometChat
Twilio is a platform that provides developers with a suite of communication tools for building messaging infrastructure in their applications.
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.
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 Quickblox
PubNub is a developer API platform that powers the realtime infrastructure in apps to build engaging Virtual Spaces where online communities can connect.

Sendbird offers APIs and SDKs for live chat, realtime messaging, push notifications, and calls with WebSocket connections, UI kits, and backend integrations.

CometChat provides rich messaging solutions for apps with features like text, voice, video chat, robust SDKs, and UI kits.
Discover how CometChat and Quickblox stack up against Ably
Ably is the definitive realtime experience platform of the internet. See how we compare to CometChat and Quickblox 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