10 Best Real Time Messaging API & SDK of 2021 (Latest Rankings)

Thanks to modern technologies, communication has become a lot easier in today’s virtual age. Businesses are shifting towards real-time chat apps to stay on top of internal interactions and customer service. Have you been planning to build a real-time chat app lately? Well, an efficient real-time chat API can help you establish your chat platform smoothly.

In this article, we bring the top 10  real time messaging API and SDK  providers available in the market.

What is a Real-time Messaging API & SDK?

A well-structured messaging API helps you build a robust real-time chat platform. It can help you integrate the most modern chat features into your business messaging system without any hassles.

A real-time chat SDK saves you from the time and effort of building everything from scratch. Some of the most common capacities of any chat API are direct and group messaging, push notifications, and many others. With an efficient chat SDK, you can build a well-performing application to stay on top of your business communications.

Comparison The Top 10 Real-time Messaging API & SDK Providers Of 2021

It is a well-understood fact that real-time chat APIs help you quickly launch your messaging platform without much investment of time and money. So, if you’ve been thinking of building a chat platform, leverage the power of efficient APIs and SDKs.

In this section, we are going to talk about some of the top real-time messaging APIs available in the market. Let us take a quick look at one of them one by one.

1. Apphitect

A Complete Real-time Messaging API & SDK for Android and iOS Apps

It is one of the leading real-time chat API providers available in the market. The best part about Apphitect is that it is 100% customizable and comes with highly advanced chat features. Some of the top features being push notifications, offline messages, presence indicators, geolocation tracking, video and voice calling, and many more .

Apphitect API & SDK Features

  • Multimedia sharing
  • Screen sharing
  • Open source
  • Easy integration
  • Personal chats
  • Social interactions
  • Sync & store
  • Fully Customizable
  • Flexible Hosting
  • Highly Scalable
  • Easy-to-integrate
  • Low Latency
  • No Monthly Subscription

Cross-platform Compatibility

  • Android,iOS and Web Platform

2. CONTUS MirrorFly

Fully Customizable Real-time Messaging API & SDK for Web and Mobile

CONTUS MirrorFly is a self-hosted chat API and messaging SDK that provides you with 100% customizable messaging solutions. It offers around 150+ chat features. Get 3-tier security and compliance, access to centralized administration, and on cloud premises.

MirrorFly supports cross-platform messaging and proactive chat. Some of the best features of MirrorFly include 1-1 private & group chat, file & screen sharing, push notifications, proactive chat, and much more.

CONTUS MirrorFly API & SDK Features

  • 100% customizable
  • VoIP calling
  • Live broadcasting
  • Multi-channel compatibility
  • Screen sharing
  • Real-time notifications & many more
  • 300+ inhouse development team
  • High profile technology stack
  • Less than 30 minutes latency
  • Supports 1+ million concurrent users
  • Flexible deployment
  • Backend infrastructure
  • Data integrity
  • Flag content & much more
  • Non-availability of Monthly Subscriptions

Cross-platform Compatibility

  • Android ,ios and Web

3. Twilio

Modern Communiation API & SDK

Twilio is a top-notch real-time chat platform API. It allows you to reach customers in over 180 countries and build communications flows for every interaction. Moreover, it enables you to reach your customers on their preferred channel at every stage of the customer journey, no matter where they are in the world.

Twilio API & SDK Features

  • Voice and video calling
  • Two-factor authentication
  • Multimedia support
  • Mass alerts
  • Cloud-scale APIs
  • Marketing messages
  • Verifications
  • Advanced software to power number selection, message deliverability, and compliance
  • Professional IT team required to implement chat solutions

Cross-platform Compatibility

  • Mobile and Web

4. PubNub

A Real-time Messaging Platform Web and Mobile

It is a top-grade real-time messaging API with modern advanced features. PubNub has 99.999% of API uptime. Some of the best chat functions of PubNub are unread message counts, file and image sharing, Giphy, message reactions, user presence indicators, @Mentions, and much more.

PubNub API & SDK Features

  • Private & group chat
  • Readymade UI design
  • Chatbots
  • Live event messaging
  • Notifications
  • Multi-channel chats
  • Supports approximately 2 trillion message delivery in a month.
  • 75+ SDKs to choose from
  • Highly scalable
  • No HIPAA and GDPR compliance in standard plan

Cross-platform Compatibility

  • Android,iOS and Web

5. Cometchat

Best Real-time Messaging SDK & API Provider for Web and Mobile

Cometchat is one of the best real-time chat API providers available in the market. It supports cross-platform compatibility and is highly scalable. Cometchat offers modern messaging solutions to small, medium, large businesses. It also provides individuals and small enterprises with a special package called ‘Sandbox’.

Cometchat API & SDK Features

  • Direct chat
  • Group chat
  • Voice calling
  • Video calling
  • Video group call
  • Data encryption
  • White-labelled user interface
  • Has a chat plugin named Cometchat Go, with no codes
  • Auto-scalable
  • Webhooks and bots
  • Idiomatic SDKs
  • Expensive

Cross-platform Compatiablity

  • Mobile and Web

6 . Sendbird

Top Real-time Chat API & Messaging SDK Provider

It is one of the best real-time chat SDK providers which app developers can utilize for building their chat platform. It comes with AES 256 end-to-end encryption. Some of the top-notch features of Sendbird are user muting, image filtering, chat moderation, profanity filters, announcements, and much more.

Sendbird API & SDK Features

  • Management of moderator roles
  • Spam protection
  • In-app audio & video calls
  • In-app chat support to customers
  • Well-structured documentation
  • Various private groups to facilitate one-on-one messaging
  • Pro features available for free trial
  • AWS infrastructure
  • High scalability
  • Channel freeze feature available
  • Trusted by 100,000+ global developers
  • Non-availability of crucial features like announcements and delivery receipts in the basic starter plan.

Cross-platform Compatibility

  • Android & iOS

7. Quickblox

Real-time Chat API for Android ,iOS Apps

Build a real-time chat app with Quickblox. It is one the best white-label chat solutions available in the market. It comes with an easy-to-use and friendly user interface. Some of the best chat features of Quickblox are cross-platform compatibility, file sharing, video & voice calling, screen sharing, multimedia sharing, and much more.

Quickblox API & SDK Features

  • Video conferencing
  • Push notifications
  • Data storage
  • HIPAA & GDPR compliance
  • Premium support
  • No license restriction
  • 24*7 support
  • Completely scalable
  • 100% encrypted
  • Offers Q-municate for Quickblox users
  • Supports fewer industries – Only limited to e-commerce and finance

Cross-platform Compatibility

  • Android,iOS and Web

8. Applozic

Best Real-time Messaging API & SDK Provider

Applozic is one of the best real-time messaging API providers for developers. It helps create an app that can allow a seamless chat experience to users. Be it finance, tech, eCommerce, healthcare, or nonprofits – Applozic has got your back. With powerful SDKs, UI kit building elements, and advanced data and backend security you can customize and build a fully-functioning chat app within a few hours.

Applozic API & SDK Features

  • Chat history
  • Multi-party chat
  • Real-time components
  • Location tracking and media sharing
  • Advanced data encryption
  • Multi-level authentication
  • Multi-tenant hosting
  • Central dashboard for data and analytics
  • Compliant with and hosted by AWS
  • Absence of WebRTC
  • No in-built VoIP

Cross-platform Compatibility

  • Web and Mobile

9. Agora

Top Real-time Messaging API & Chat SDK

Agora is a top real-time messaging API that is highly scalable and allows real-time audio and video calls. It also enables live interactive streaming. Moreover, it is compatible with all popular development platforms and also mobile- friendly with minimal battery consumption.

Agora API & SDK Features

  • Live interactive audio streaming
  • Live interactive video streaming
  • Recording
  • Audio calling
  • Customizable UI
  • Third-party extensions
  • 24*7 customer support
  • Messaging feature in beta

Cross-platform Compatibility

  • Web and Mobile

10. Mesibo

Best Real-time Chat API & Messaging SDK for Web

Mesibo is one of the best real-time chat SDK providers in the market. With best in-class message switching technology and codecs, it enables you to ensure a low-latency delivery. If developers want a full package of app-making elements, then Mesibo can be one of top options to consider.

Mesibo API & SDK Features

  • Direct messaging
  • White-label chat solution
  • Group messaging
  • End-to-end encryption
  • Push notifications
  • Audio & video calls
  • Cloud-hosting
  • Moderation and filters
  • Demos available
  • On-premise deployment
  • AI chatbots
  • Security & encryption
  • Non-availability of real-time storage in the on-premise deployment

Cross -platform Compatibility

  • Web and Mobile


We hope our article helped you learn about the top real-time chat service providers. Make sure you choose an efficient chat SDK that suits your business requirements and budget. Now, what are you waiting for? Start creating your messaging platform now. May you establish a popular and successful chat app!

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. salman Reply

    Excellent article. As I would see it, extraordinary compared to other real time messaging platform is Capture One, despite the fact that learning it is more troublesome than lightroom.

    Thanks for this. And Keep writing. Cheers

  2. hussan Reply

    My friend and I want to start making consulting app for our business, so I wanted tips on messaging api providers. I didn’t know you should consider the computer you have when deciding what chat api providersyou want to use. I’ll have to keep that in mind and look around for cAPI providers lists that has superb color grading, thanks to this post!

  3. srinivasan Reply

    Nice post Parthiba! Some good pointers. I like the suggestions you made in the messaging sdk providers comparison. That gives some good ideas on what stuff to buy if I ever have the guts to make chat app for my business :).

  4. preethi Reply

    Thanks so much for this! I LOVE the tips you provide for free! Just getting started choose top real time messaging api for android,ios for business needs and I feel like I have a better idea where to go from here.

  5. vishal Reply

    This is an AMAZING comparsion article about real time messaging sdk providers. Thanks for sharing all the insights and direction on what I can do, both for my own business and my clients.

    I look forward to starting to implement these. I appreciate your work Parthiba.

  6. nisha Reply

    Parthiba, you did a super amazing job on this content. it is definitely worth bookmarking. You just inspired me to go ahead and give best real time messaging API & SDK comparison

    Thanks, always.

  7. arnold Reply

    I have used 2 of listed above one is Mesibo & agora real time messaging API. Both of them are really great. But this post had cleared some myths about other chat sdk providers. Thanks for this informative article.

  8. rahman Reply

    A good messaging api provider list.I am doing some research since I am building my own social chat app . I am learning the pros, cons, what features people need, what people don’t and so on. This list helped a lot.
    Thanks for putting this together here parthiba

  9. russel Reply

    I think very very detailed article for those who are looking for real time messaging api for their apps . There are some drawbacks in each chat api platform so you should choose any of them carefully. I suggest you MirrorFly

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