
Twilio
Chat by Stream
CometChat
MirrorFly
GetStream.io
Applozic
Plivo
SendBird is messaging-as-a-service.

Socket.io
Pusher
Ably
PubNub
SignalR
Faye
NATS
An open, scalable realtime engine for Node.js

Which is more popular?
SocketCluster might be a bit more popular than SendBird. We know about 16 links to it since March 2021 and only 14 links to SendBird.
Website, pricing, platforms and company facts side by side.
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| Website | sendbird.com | socketcluster.io |
| Pricing | ||
| Company | Startup from the United States · 100 - 249 employees · 2013 | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
SendBird is recommended for enterprises, startups, and developers looking to enhance user engagement on their platforms with real-time chat features. It is particularly beneficial for industries such as e-commerce, healthcare, social media, and any other vertical that requires efficient user communication solutions.
No analysis of SocketCluster yet.
Walkthroughs and reviews on video.
Sendbird Launches the Sendbird Calls API for In-app Voice and Video
More videos
013 Client side Logins Authentication with Socketcluster with the client
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using SendBird and SocketCluster. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


AI ProvidersHighlightsCountriesG2 ReviewsRatings1. ApphitectSelf-hosted & white label solution and custom work-flowUAEG2 -5.5/5(⭐⭐⭐⭐⭐)2. CONTUS TECHBuild 100% custom AI virtual assistant in 48 hoursIndia & USAG2...
Sendbird’s pricing typically offers a range of plans tailored to various needs, including a free tier with limited features and paid tiers with more advanced functionalities. In contrast, CometChat’s pricing structure...
Sendbird, primarily an omnichannel communication solution platform, was founded in 2013.
We have no reviews of SocketCluster yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


The Monthly Active Users (MAU) model is one of the most widely used pricing models in the industry. Providers like CometChat, Sendbird, Twilio, and Stream charge based on the number of unique active users per month. - Source: dev.to / almost 2 years ago
Fortunately, you don’t need to choose one over the other. The two communication protocols can, and often should, be used together, allowing each to do what it does best. If you need to implement real-time communication and streaming... - Source: dev.to / over 2 years ago
After you've analyzed the SwiftUI vs. UIkit comparison, consider adding customer communications to your app to enhance user engagement, retention, and CSAT. You can do this with Sendbird, an all-in-one communications API platform for web... - Source: dev.to / over 2 years ago
This is basically the principle behind https://socketcluster.io/ scalability; the sharding of channels across available brokers is pseudo-random. It uses a hash function for determinism but the distribution looks essentially random. - Source: Hacker News / 5 months ago
I started building something pretty obscure about 14 years ago; https://socketcluster.io/ an open source, WebSocket-based RPC + pub/sub library with a focus on in-order async stream-processing with backpressure monitoring. It didn't... - Source: Hacker News / 5 months ago
I've been advocating for this approach for years. You can't avoid race conditions without using some kind of queueing mechanism and you need backpressure to measure queue capacity. I built this into every aspect of... - Source: Hacker News / 5 months ago
When comparing SendBird and SocketCluster, you can also consider the following products.

Brings voice and messaging to your web and mobile applications.
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Realtime application framework (Node.JS server)
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Build and ship in app messaging in a few hours
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Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.
Compare Pusher to SendBird or SocketCluster:

Seamless Real-Time Chat Integration for Your Applications.
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The realtime platform that just works. We power more WebSocket connections than any other pub/sub platform, serving over 2 billion devices monthly.
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