Multi-Modular Ecommerce App for Android & iOS (KMP) | Udemy

From Figma Design project, to the actual Android and iOS application.

We’re gonna build a complete E-commerce solution from scratch, and I mean truly from scratch. Together, we’ll design the UI in Figma, and then bring that design to life using Jetpack Compose — for both Android and iOS — using Kotlin Multiplatform.

What’s Inside?

We’ll follow a clean, multi-modular architecture with the MVVM pattern to keep the project scalable, maintainable, and production-ready.

Our app will be a food supplements store, featuring products from multiple categories. And yes — we’re building for real-world usage.

Key Features

• User Authentication – Sign in with Google using Firebase Auth.
• Shopping Cart – Users can browse, select, and add products to their cart. Some products include customizable options like flavors.
• Checkout & Payments – We’ll implement two payment options:
  – Pay on Delivery
  – Pay with PayPal — and I’ll show you how to integrate the PayPal API to handle transactions securely.

• Email Order Confirmation – Once an order is placed, an automated email is sent with all the order details: product info, total price, payment method, and shipping details.
• Admin Panel – A secure area accessible only to store owners where you can add, update, or delete products.

Backend with Firebase

We’ll use a full suite of Firebase services:

• Authentication – Sign in with Google.
• Cloud Firestore – As our main database, with security rules.
• Firebase Storage – For storing product images.
• Cloud Functions – To automate email notifications.
• Cloud Messaging – For push notifications.

30 Hours of Practical Content

This course packs nearly 30 hours of high-quality, real-world development. I didn’t cut out the bugs, issues, or debugging moments — you’ll see everything, so you can learn how to handle real development challenges.

Who is this course for?

This is not a beginner-level course. You should already be familiar with Kotlin and Jetpack Compose. If you’re just starting out, I’d recommend learning the basics first.

But if you’re ready to take your skills to the next level and build a cross-platform, real-world E-commerce app using KMP, this course is packed with value and practical knowledge.

Let’s build something great!