Home » Tutorials » How to Build an Android Chat App using Kotlin


Chat apps are becoming so popular in the market, especially after the Covid-19 situation. In particular, many companies have started to use their own apps for internal communication, with the rising remote work culture. As the demand for custom communication apps are increasing, this is a great time to learn how to build a chat app, all by yourself!

Since Google announced Kotlin as its official language, many companies have started to switch to this technology for various reasons including interoperability with Java.

In this tutorial, we'll take a closer look into creating a chat app using Kotlin and the MirrorFly SDK. Let's break it down step by step!


If you are starting with your Android app development, MirrorFly chat SDK is a great place to start with. Instead of writing codes from scratch, MirrorFly offers you pre-built messaging features that you can add to your existing app.

Want to know more about MirrorFly? Explore here.

What we’ll cover?

We will be developing a messaging app in Kotlin for Android using MirrorFly SDK.

Here’s what you’ll learn in the upcoming sections:

  • Add the MirrorFly Chat SDK
  • Connect your app to the MirrorFly server
  • Enable real-time messaging

Let’s start building.

Before You Get Started

You’ll need the following:

  • Android Lollipop 5.0 (API Level 21) or above
  • Gradle 4.1.0 or higher
  • Java 7 or higher

Quick Steps To Build An Android App In Kotlin

Get The Kotlin SDK

Step 1 : To start developing the chat app, the first thing you need to do is sign up for an account on MirrorFly.

Step 2 : On our official contact page, provide your information. Our expert will reach out to you for the next steps regarding your account.

Step 3 : Sign into your account and get the license key.

build angular chat app


And we’re done! This tutorial took you through the complete process of building a chat app in Kotlin, with the help of MirrorFly Chat SDKs. If you’ve found this guide simple and easy, you may also check out our other features and experiment with them.

Want us to do the integration? You can hire our tech engineer and they’ll integrate the SDK into your app end-to-end.

Until then, happy chat app development!

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