🚀 Overview

Flutter BuySell version 3.7 is a powerful classified ads and marketplace application that allows users to
buy, sell, and exchange products or services locally or globally. Built using Flutter for cross-platform support
and a Laravel backend (optional), it’s perfect for entrepreneurs, startups, and developers looking to create their own
buy-sell-trade platform similar to OLX, OfferUp, or Carousell.

Experience (E): The app follows modern eCommerce and community-driven marketplace UX models—simple listings,
fast chat integration, secure payments, and image-first navigation designed to maximize conversions and engagement.

✨ Key Features

• 🛍️ Product Listings: Post, edit, and manage listings with multiple photos, price, and location.
• 📱 Cross-Platform: Flutter-built for Android and iOS with responsive and Material 3 UI.
• 💬 In-App Chat: Secure real-time chat between buyers and sellers (via Firebase or custom backend).
• 📍 Geo-Location Search: Browse listings by city, region, or within a specified distance radius.
• 🎨 Categories & Filters: Filter by category, brand, price range, or product condition.
• 🔔 Push Notifications: Firebase Cloud Messaging for listing approvals, chats, and offers.
• 💳 Payments & Subscriptions: Stripe / Razorpay / PayPal for featured ads and promotions.
• ⭐ Featured Ads: Promote listings on top with premium subscription models.
• 🧾 Ad Management: Approve, reject, or remove posts through admin panel moderation.
• 📷 Camera & Gallery Uploads: Native file picker and compression support for smooth posting.
• 🧠 Smart Search: Keyword-based and dynamic suggestion engine for better discoverability.
• 🌍 Multi-Language & RTL: Full localization and right-to-left layout support.
• 🧩 AdMob & Facebook Ads: Monetize with banner, interstitial, and rewarded ads.
• 🔐 Authentication: Email, phone, Google, or Facebook sign-in (Firebase Auth ready).

⚙️ Technical Stack

• Frontend: Flutter 3.7 (Dart 3, Material 3, Null Safety)
• Backend: Laravel 10 (PHP 8.1+) or Firebase Firestore (for smaller deployments)
• Database: MySQL 8 / MariaDB 10.6+
• Realtime Chat: Firebase Realtime DB / Firestore / Pusher
• Storage: Firebase Storage or AWS S3-compatible object storage
• Maps: Google Maps SDK for geolocation and search filtering
• Payments: Stripe, Razorpay, PayPal, Apple Pay, Google Pay
• Push Notifications: Firebase Cloud Messaging (FCM)
• Ads: AdMob + Facebook Audience Network SDK
• Server Requirements: Nginx/Apache, HTTPS, PHP extensions: mbstring, json, curl, pdo_mysql

🧩 Installation Guide

1. Upload Laravel backend (if used) to your hosting server and run composer install.
2. Configure your .env file with database, mail, payment, and storage keys.
3. Run migrations: php artisan migrate --seed to create demo data.
4. In Flutter project, update lib/config.dart with your API base URL and Firebase project credentials.
5. Set AdMob and Facebook ad unit IDs for monetization.
6. Build and test the app using flutter run → flutter build apk --release.
7. Optional: Deploy website module (if included) using the same Laravel backend.

📦 Deliverables

• ✅ Full Flutter mobile app source (Android & iOS)
• ✅ Optional Laravel backend + admin panel
• ✅ Firebase integration templates (Auth, DB, Storage)
• ✅ Payment & ads setup documentation
• ✅ Postman collection & SQL schema
• ✅ GPL v3 license and setup guide

📱 Supported Platforms

• Android: 8.0 (API 26) and above
• iOS: 13+ (Xcode 15+)
• Server: Ubuntu 22.04+, Docker-ready, or shared hosting with Laravel support

👨‍💻 Original Developer Credit

Original concept and UI inspired by commercial listings on CodeCanyon.
Support the original author here:
CodeCanyon – Original Author.

🔒 Disclaimer

This source code is redistributed under the GPL v3 license for educational and lawful commercial use.
We are not affiliated with OLX, OfferUp, Carousell, or any other brand. All trademarks belong to their respective owners.
Always comply with eCommerce, data protection, and app store publishing policies when deploying production versions.