Build a Mobile Wallet & Utility Payment App Like OPay with Flutter & Firebase | Full Walkthrough

Build a Mobile Wallet & Utility Payment App Like OPay with Flutter & Firebase | Full Walkthrough

In this video, I’ll walk you through the mobile wallet and utility payment app I developed using Flutter and Firebase — inspired by popular fintech platforms like OPay, PalmPay, and CashApp.

Whether you're a Flutter beginner or an intermediate developer, this video gives you a full demo of the key features, UI/UX, and Firebase integration used to bring this app to life.

📱 App Features:

- ✅ User Registration & Login (with Firebase Authentication)

- ✅ Wallet Dashboard (balance, transaction history)

- ✅ Send & Receive Money

- ✅ Utility Payments (Airtime, Data, Electricity, etc.)

- ✅ Secure PIN System

- ✅ Real-Time Updates with Firebase Firestore

- ✅ Notifications & User Profiles

🛠️ Tech Stack:

- Flutter (Cross-platform mobile development)

- Firebase Authentication

- Firebase Firestore (Real-time database)

- Firebase Cloud Functions (Secure wallet logic)

- Firebase Storage (for profile images or receipts)

- State Management: Provider, Riverpod, Bloc

📂 Source Code & Resources:

💡 Feel free to fork, customize, and use it as inspiration for your own fintech or startup idea.

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🎯 Why This App?

This app was built to simulate a real-world financial technology solution.

I wanted to challenge myself and show that you can build advanced, production-ready apps using open tools like Flutter and Firebase — without needing a big team.

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📸 Chapters:

00:00 – Intro

00:30 – App Overview

01:30 – Feature Demo

03:00 – Firebase Explanation

04:30 – Final Thoughts

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I regularly upload projects, tutorials, and walkthroughs using:

- Flutter

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- React Native

- Fullstack app development

- Tech for African startups

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📲 Follow Me & Stay Connected:

Email: adewebdeveloperng@gmail.com

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