What if your React Native app could have a real time chat experience with an AI that actually responds?

In Video 28 of AI Mobile Engineer 2026, we build an AI Real Time Chat App using React Native, Expo, Firebase Realtime Database and the Gemini API.

We start by understanding what Firebase Realtime Database actually is and why real time data can be useful for applications such as chat.

Then we use Gemini to prepare a professional implementation prompt and give it to Cursor AI to implement the application.

After that, we create and configure Firebase Realtime Database, generate a Gemini API key for AI responses, configure the required project values through an environment file, and connect everything together.

Finally, we run the complete app with Expo Go and test the AI chat experience on a physical device.

WHAT WE BUILD IN THIS VIDEO
* Understand what Firebase Realtime Database is
* Understand the concept of real time data synchronization
* Create and configure Firebase Realtime Database
* Build an AI powered chat experience with React Native Expo
* Prepare a professional implementation prompt with Gemini
* Use Cursor AI to implement the application
* Connect the React Native app with Firebase Realtime Database
* Generate and configure a Gemini API key
* Configure project values through an environment file
* Connect Gemini AI for chat responses
* Run the application using Expo Go
* Test the complete AI chat experience on a physical device

By the end of this lecture, you'll have built a practical AI Real Time Chat App combining React Native, Firebase Realtime Database and Gemini AI.

Subscribe to The Techzeen to become a high-paying AI Cross-Platform Mobile App Engineer.

Website:
https://www.thetechzeen.com/

Complete Playlist:
https://www.youtube.com/playlist?list=PLIKgFOVIOd1Y

WhatsApp Community:
https://whatsapp.com/channel/0029VbDmJP617Emr7OAPtp1H

GitHub Source Code:
https://github.com/farzeen-ali/Firebase-Expo

GitHub Lecture Files:
https://github.com/farzeen-ali/AI-Mob-Engineer-Concepts

#ReactNative #Firebase #FirebaseRealtimeDatabase #AIChatApp #GeminiAPI #Expo #AIMobileEngineer #RealtimeDatabase #CursorAI #GeminiAI #ReactNativeExpo #MobileAppDevelopment #ReactNativeTutorial #ChatApp #TheTechzeen