From Scratch: A Real-Time Banking App Simulation with Firebase (No Frameworks)

When people think about building a banking app, they immediately jump to heavy frameworks and complex backend systems. I wanted to try something different. So I built Paybuntu , a premium demo banking app using just Vanilla JavaScript + Firebase . No React. No backend server. Just pure logic, structure, and real-time data. What is Paybuntu? Paybuntu is a demo banking application that simulates a real digital banking experience. Users can: Manage a virtual wallet Transfer funds between accounts Pay bills (TV, electricity, data) Track transactions in real time Customize profiles Experience basic security features like PIN and 2FA (simulated) The goal wasn’t just to “build something”… It was to build something that feels real . Tech Stack Frontend: HTML5, Vanilla CSS (Glassmorphism UI), Vanilla JavaScript Backend (Serverless): Firebase (Auth, Firestore, Hosting, Storage) Media: Cloudinary (profile uploads) Icons & Fonts: FontAwesome, Google Fonts How It Works (Architecture) Authentication