1 February, 2023
Real-time chat SDK

Best 10 Real Time Chat SDKs and Messaging APIs (2022)

Real-time Chat SDKs are highly popular among enterprises that have an interactive user base. If you are looking to build or enhance your app with in-app chats, you are at the right place! 

Table of Contents

This article is focused on giving you the following outcomes: 

  • The finest list of real-time Chat API and SDK providers
  • Impact of instant messaging solutions on your brand value
  • Key ways to increase user engagement using chat solutions

To begin with, almost 3.21 billion users across the globe are actively using the over-the-top messaging apps (infamously known as OTTs) to communicate on a daily basis. This usage rate is expected to increase over 3.51 billion users in 2025 (Source: Statista Research Report). This is a solid reason why enterprises are quickly switching from traditional email communication to chat solutions in this information era

What is a Real-time Messaging Chat App?

A real time chat application is an impressive communication medium used in all scales of enterprises. Individuals in your organization can conveniently interact with each other using private and group chats features. This effectively reduces communication gaps at a high rate, leveraging revenue growth and valuable business alliances. Instant messaging can be a game-changer if you’re aimed at endorsing engagement among your stakeholders.


10 Best Chat SDK Providers For Web and Mobile Apps

The first step in building a dynamic chat infrastructure for your business is to identify the best chat API or SDK provider. To curb the burden out, we have curated a list of the top performing Chat SDK tools across the globe.

1. CONTUS MirrorFly

CONTUS Mirrorfly is a brilliant resource of real time chat solutions preferred by developers for its easy to use features and simple integration capabilities. It offers to connect more than 10M users at a time and facilitates above 1B conversations worldwide. The chat APIs offer an array of enterprise solutions like 99.99% uptime SLA with HIPAA compatibility and GDPR Compliance. The visually pleasing user interface helps brands reach out to its users without any hitch. 


  • Multichannel communication
  • Easy Sharing of Files and Screen
  • Live Broadcasting & Streaming
  • Instant and real-time notification


  • Cloud & Self-hosting
  • Improved UI/UX Designs for multifold user engagement.
  • Retainability of Brand identity with whitelabel solutions
  • Over 250+ Technical Teams for customer support


  • Limited participants in Video Conferencing

Supportive Platform :- Android,iOS,Web

Pricing :- Free & Paid

Try MirrorFly SDK

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2. Twilio

This programmable instant chat API is suitable most likely for high-volume messaging environments. It is capable of facilitating over 795B interactions with message delivery across multi channels. Twilio holds its position up with a 99.999% API uptime apparently adhering to the compliances.


  • Voice & Video Calls
  • Cross-Channel messaging
  • Two-factor Authentication
  • Multimedia Support
  • Proactive Notifications
  • Mass Alerts


  • Conversations in High-volume
  • Low latency
  • Message and user scalability 
  • Trial package allows free access for 50 users


  • Customizable pricing based on users and number of messages

Supportive Platform :-Mobile & Web

Pricing :- Free & Paid

3. PubNub

Pubnub solves the biggest challenge of concurrency control during heavy traffic while balancing its uptime SLA at ease. This Chat API is also well known for keeping pace of its user engagement and retention. The moderation tools availed by this API conserves the standards and civility of its user platforms.


  • Private messaging and group messaging
  • Multi Channel communication
  • Chat Bot Device Chat
  • Tailor-made UI/UX designs
  • Instant and Real-time Notifications
  • Chats for communities and social groups
  • Messaging during live events


  • Caters real-time use cases alongside chats
  • Scalable and reliable
  • Facilitates over 2 trillion message delivery per month
  • Offers over 75 SDKs


  • The standard plan neither grants access to PubNub functions nor complies with HIPAA and GDPR.

Supportive Platform :-Andriod,iOS & Web

Pricing :- Free & Paid

4. Cometchat

This Colorado based in-app messaging solutions platform is a leading chat API and SDK provider in the industry since 2009. Its noteworthy voice and WebRTC enabled video calling features are preferred from small to large scale enterprises. As a backing to individual users and small scale enterprises, Comechat exclusively composed a Sandbox package.


  • One-on-One text chat
  • Group chat
  • Voice calling
  • Voice and Video conference
  • Video calling


  • Owns CometChat Go, a chat plugin with no-codes.
  •  White-label UI solutions
  • Customizable Auto-scaling
  • Well suited for marketplaces, on-demand services, Edu-tech, Live Stream.


  • The price is significantly higher

Supportive Platform :-Andriod,iOS & Web

Pricing :- Free & Paid

5. Sendbird

Based in the US, Sendbird is a trusted Chat API and in-app messaging SDK provider offering AES 256 End-to-End Encryption data protection to its user platforms. This reliable source of chat infrastructure supports over 1,000,000 concurrent connections per application and 500,000,000 messages every day. With its users spread across 250 countries, Sendbird establishes reliable features like global language translation.


  • User muting
  • Image filtration
  • Smart throttling
  • Protection against Spam flooding
  • Moderation tools
  • Managing moderator roles & permissions
  • Profanity filters
  • Announcements


  • Private group channels that include 1-on-1 messaging and WhatsApp style closed group chat.
  • Channel freeze 
  • Scalable Infrastructure on AWS
  • Availability of free trial on all Pro Features


  • The starter plan poses limitations on trying essential chat features like announcements and delivery receipts.

Supportive Platform :-Andriod,iOS

Pricing :- Free & Paid

6. Apphitect

The 100% customizable APIs provided by Apphitect IM gives its users an unique experience with personal-chats, social interaction and offline messaging. Adaptation of cutting-edge technologies like Erlang, Apache Cassandra, and AWS makes the platform stand out as a leading instant messaging API and chat SDK provider in the industry.


  • In-app chat
  • Push notifications
  • Social integrations
  • Location tracking
  • Video & Voice Calling
  • Offline messages
  • Presence Indicator 
  • Sharing features: Screen and Multimedia


  • Unlimited Storage and self cloud hosting.
  • Possibility of zero downtime
  • Reliable and Scalable
  • Easy Integration and 24×7 customer support


  • It takes ten business days to integrate Chat API into a Website.

Supportive Platform :- Mobile and Web Apps

Pricing :- Free & Paid

7. Quickblox

Quickblox is a leading whitelabel chat solution provider for sectors like banking and finance. The quality of WebRTC-enabled voice and video calling exclaims the reason why users choose this provider. The simple and clean UI/UX designs with flexible data storage are other remarkable advantages its users cannot miss to experience.


  • Integration in active user-management platform
  • Compatible across different platforms 
  • Video & Voice Calling
  • Sharing features: Files, Screen and Multimedia


  • No license restriction and reliable customer support
  • Scalable dedicated servers
  • Offers a ready-made messaging app called Q-Municate for its users
  • End-to-end encryption with adherence to compliances


  • Does not suit platforms other than healthcare, E-commerce, Marketplace and finance

Supportive Platform :- Android,iOS and Web Apps

Pricing :- Free & Paid

8. Getstream

GetStream provides in-app chat APIs and SDKs essential to build chats and new feed infrastructure. The reliability, maintenance and overall accessibility makes Stream’s APIs an user-friendly platform. The UI kits offered by Stream includes live chat, live streams, team chat and gaming interfaces. 


  • Chat Messaging
  • Activity feeds
  • Virtual Events
  • Live Streams


  • Low latency
  • End-to-end encrypted chat infrastructure
  • High end performance & reliability
  • Customizable chat features
  • Easy Integration


  • Limited integration

Supportive Platform :- Android,iOS and Web Apps

Pricing :- Free & Paid

9. Agora

This Chat SDK provider delivers real-time voice and video calls to over 40,000,000,000 minutes of real-time connection per month. With complete network monitoring in place, Agora enroutes the path for sub-second latency across 250+data centers.


  • Voice and Video calling
  • Live Interactive Audio and Video streaming
  • Recording capability
  • Instant real-time Messaging


  • Customizable UI and third-party Extensions .
  • Tailor made UI 
  • Minimal energy consumption in mobile-batteries
  • Availability of 24×7 development and operational support.
  • Maintains a 400ms average global latency with 99.99% uptime.


  • Not suitable for small and medium business

Supportive Platform :- Mobile & Web Apps

Pricing :- Free & Paid

10. Mesibo

This developer-friendly platform adorns itself with the best-in-class message switching technology and codecs. It administers the best calling experience at low latencies. Compatible across Android, ios and web apps, the APIs support multiple languages at the same time. With Mesibo, users can get everything that makes a realtime chat app.


  • One-on-one messaging
  • High end Video and Voice calls
  • Clean White-label UI
  • Group Messaging
  • End-to-end encryption
  • Push Notifications


  • On cloud and own-premise hosting
  • Customizable moderation and Filters 
  • Permits addition of own encryption and key exchange mechanism.
  • Demo availability


  • Unavailability of Real-time storage and bandwidth in the on-premise Deployment.

Supportive Platform :- Mobile & Web Apps

Pricing :- Free & Paid

Develop Powerful Mobile Apps with Essential Chat Features

1.In-app communication

Chat platform are getting popular among several businesses for their instant messaging facilities without affecting the ongoing activities. Even while you are busy performing a task, you may respond to chats without any impact on the former.

For example, if you are a Financial Consultant and in the middle of an appointment, when you receive any queries from your other clients through the Chat App, you can instantly send them a response without disturbing the ongoing work.

Let’s assume that you are a busy financial consultant preoccupied with an important appointment. On the other hand,  your other clients wait for a reply to their queries that need your minimal or short term attention. Using chat apps, you may respond to them simultaneously without upsetting your primary appointment.

2. Productive Interactions

In every organization, several teams come together to work on the same task. They exercise varied functionalities and require unique discussion spaces. At this instance, Project managers coordinate with the teams and distinct work groups in the chat applications. This allows an assorted project flow with increased productivity and minimal communication gaps.

3. Collaborative Endeavor

The world has efficiently adapted to ‘Remote Working’ in recent years. Be it because of a pandemic or a demanding need, communication mediums have made everything possible! Employees can chat live, share files and screens, make video calls and enjoy several other resources available in the Enterprise chat apps. The technology of instant messaging APIs have proved to help people achieve great feats together even if spread across the globe.

4. Authenticity and Confidentiality

When an Enterprise chooses to build a custom build chat app, it must ensure security features like multi-layered access and role-based control. This validates the safety and privacy of information shared across different channels. Similarly, chat apps with end-to-end encryption are highly preferred to moderate internal user access and limit third party activities. 

For instance, let’s take a case of how an unprecedented situation was handled by Enterprises across the world during the Covid-19 outbreak. Managements chose to guide and create interaction pools for their employees, without affecting their well-being. At the same time, they ensured security of their know-hows by choosing the right Chat API providers suitable for their business pursuits

Fundamentals of Choosing a Chat SDK Provider for Pre-built Apps

As the first few steps of building a compelling chat infrastructure, narrow down the details of your communication requirements. Define whether you are building an android chat app from scratch or buying a pre-built chat API. Dive deep into the crucial factors and create a list of essential elements that can satisfy your business needs. Match them with vendors who you find as the best fit and ensure customization availability. Check on the pricing and brace yourself to level up your game!

Benefits of a Subscription-based Chat Solution

The biggest challenge that comes after choosing mobile chat SDK provider is to select the best pricing option that well suits you. Here we discuss a list of factors that support the subscription model of chat SDKs:

1. Storage Limitation

Be informed of  the storage limit set by the providers, beyond which a small amount of fee may be applicable.

2. UI Customization

Choose the vendors who provide simple and user friendly UIs. The User Interface (UI) is the first element your customers will come across to understand your product and engage with.

3. User Limit

You may choose to broadcast a chat until the user-limit set by the providers. You can raise the bar by choosing to pay for it. Meanwhile, this results in limiting the number of concurrent users and maintains legitimacy.

4. Stroage & Access

Real-time Chat SDK tools provide you features like chat message retention by which you can keep your important conversations safe. On the contrary, subscription based chat solutions have limitations over saving your data.

5. Scalability

Chat SDKs give you an opportunity to enjoy limitless scalability. However, chat solutions with subscriptions do not offer this.

6. Monetization

Try out sponsorship and in-chat payments options and convert your chat apps into a monetizing resource.

7. Pricing

Avoid the need for upgrading from time to time and pay only once for your Chat SDKs with customization options.


To summarize, each Chat SDK provider mentioned in this article has their own unique selling proposition. It is now your complete obligation to keep a clear account of your requirements and make the wisest choice. Gear up to amplify your business’ user engagement through smart instant messaging chat app features and boost your success rate.

You can also try out our platform and test all of our in-app chat features risk-free for 21 days. No sign-up fees or credit cards are required.

Parthiba is a Product Marketer, helping providers of the various industries like healthcare, education, etc., to elevate their conversation value with the help of powerful communication solutions to drive better communication experience.


  1. ahamed Reply

    We need to integrate video/voice peer-to-peer chat on our existing app. what could be the costs? MirrorFly Messaging SDK fit for my business requirements

  2. Didyk Reply

    Hi I develop learn platform with many features and want to integrate group chat SDK, Can I get the price sheet for your product? And would be very good if I can pay for used time, not for a month. i need your Messaging API costs and hosting plan

  3. Tunisha Reply

    We are developing a health care solution, so we need a instant messaging API&SDK to continue the development of the communication module.

  4. Maria Reply

    Hi, we are a fintech company located in Singapore and Indonesia, we are looking for a in app messaging feature to do a customer live verification. Would be great if we can arrange time for a discussion. Thanks. and share you API & SDK price lists

  5. Manish Reply

    Hello , I am in need of a real time chat solution with video and voice calling for hospik. I am building a chat platform to connect healthcare providers to patients.

  6. Peshuva Reply

    We are looking to integrate a instant messaging API with a web-based software and a mobile application. MirrorFly is one of the providers that we are looking into and would like to discuss more about its capabilities and specific features.

  7. brad Reply

    We would like to have a call as soon as possible to understand your instant messaging SDK pricing and how you compare to Agora, which we have been working with to date. We build apps in the sports space, including TennisONE and the soon-to-be relased Bleachr App that utilizes multi-directional interactive video to join sports fans around their favorite sport. It is somewhat time sensitive so please let me know when you have your earliest time slot available. Thanks, Brad

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