SS Talk is an open source Kotlin based chat app built on top of Firebase. The project is available on GitHub. Feel free to check on it. The repository link - https://github.com/azizur-rehman/SSTalk Following are some of the features available ? Single Chat ? Group Chat ? Text Messages ? Image Messages ? Video Messages ? Send Location ? Push Notifications ? Last seen feature ? Realtime user presence system ? Blocking feature ? Phone signing with OTP verification