Best Chat SDK Products in 2026

SendBird is messaging-as-a-service.

Key SendBird features:

Scalability Feature-rich Customizability Robust moderation tools

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s affordable, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Key VoIPstudio features:

Call Recording Call Forward Call Analytics and Reporting Call Conferencing

Try for free paid Free Trial $4.99 / Monthly (User)

Build and ship in app messaging in a few hours.

Key Chat by Stream features:

Scalability Customizability Rich Features Developer-Friendly

Open Source

Brings voice and messaging to your web and mobile applications.

Key Twilio features:

Scalability Ease of Integration Global Reach Feature-Rich Platform

Open Source

The #1 CPaaS Solution for Small, Medium & Enterprises.

Key MirrorFly features:

Comprehensive Feature Set Highly Customizable Scalability Security

Open Source paid Free Trial

APIs for the development of scalable newsfeeds and chat applications.

Key GetStream.io features:

Scalability Real-time Updates Flexibility Feature-rich

Open Source paid

Seamless Real-Time Chat Integration for Your Applications.

Key CometChat features:

Feature-Rich Easy Integration Customizable UI Scalability

Open Source freemium $109.0 / Monthly (Based on the Monthly Active Users (MAUs))

Cloud communication and data backend.

Key QuickBlox features:

Comprehensive Communication Features Customization and Extensibility Robust Backend Infrastructure Cross-Platform Support

Chat API & In-App Messaging SDK for Mobile & Web Apps Innovate fast, save development cost and delight users with a scalable, secure and customizable Chat.

Key Applozic features:

Rich Messaging Features Customizable UI Cross-platform Support Real-time Communication

Agora.io is a real-time communications provider delivering video and voice communications across devices and global networks.

Key Agora.io features:

High-Quality Real-Time Communication Cross-Platform Support Scalability Global Coverage

PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.

Key PubNub features:

Real-time Messaging Global Infrastructure Scalability Security

Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.

Key MessageBird features:

Omnichannel Messaging Global Reach Scalability API Integration

Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.

Key Pusher features:

Real-Time Capabilities Ease of Use Scalability Security

Open Source

Engage your customers from your own apps and mainstream chat apps like Whatsapp, LINE, Facebook Messenger, Telegram, Email, Twitter, Instagram, etc. and centralize all chats into a single dashboard.

Key Qiscus features:

Multichannel Messaging Real-time Communication Customizable Interface Scalable Solutions