💸 CashBack King – Web Visit, App Install, Captcha Game & Casino Betting Earning App With Admin Panel (GPL-Ready Source Description)

CashBack King is a full-featured reward and earning system where users can earn cash or points by completing online actions — such as visiting websites, installing apps, solving captchas, or participating in gaming and casino-style tasks.
Built in Flutter + Laravel, it includes a powerful Admin Panel to manage campaigns, users, payments, and analytics.
This document provides an SEO-optimized, E-E-A-T-compliant GPL source description suitable for learning, documentation, and open-source archives.

🚀 Overview

CashBack King bridges the gap between advertisers and users by rewarding engagement activities.
The app motivates users to interact with sponsored content while enabling businesses to promote apps, games, or web offers.
It’s ideal for developers building GPT (Get Paid To) platforms, affiliate systems, or incentive-based marketplaces.

• 🪙 Earn money through multiple activities (visits, installs, games, captchas).
• 📱 Modern Flutter UI for Android & iOS.
• 🖥️ Laravel-based admin dashboard for control and insights.
• 💰 Integrated withdrawal and wallet management.

Experience (E): inspired by popular cashback and rewards apps such as Swagbucks & CashKarma — redesigned for transparency, modularity, and cross-platform usability.

✨ Key Features

• 🎯 Multi-Earning System: earn from app installs, ad views, web visits, captcha solving, and mini-games.
• 👤 User Accounts & Wallet: secure registration, KYC verification, and real-time wallet balance.
• 📊 Admin Panel: manage campaigns, view analytics, approve payments, and configure rewards.
• 💬 Referral Program: generate extra income by inviting friends with custom referral links.
• 🔐 Fraud Protection: device-ID and IP-based validation to prevent multiple submissions.
• 📱 In-App Tasks: dynamically fetched offers via API or custom campaigns.
• 💰 Payout Options: integrate PayPal, Paytm, crypto, or manual withdrawal.
• 📈 Analytics & Reports: admin insights on user engagement and ROI.
• 🌐 Multi-Language & Currency Support: global deployment ready.

⚙️ Technical Stack

• Frontend (App): Flutter 3.x (Dart)
• Backend (API & Admin): Laravel 9 (PHP 8.x)
• Database: MySQL / MariaDB
• Hosting: cPanel / VPS / Cloud Server
• Notifications: Firebase Cloud Messaging (FCM)
• Auth System: Laravel Sanctum / JWT Tokens

Server Requirements: PHP 8.1+, MySQL 5.7+, mod_rewrite enabled, HTTPS recommended.

Expertise (E): showcases a hybrid architecture linking Flutter clients with a RESTful Laravel backend — including CRUD APIs, authentication, and performance-optimized data handling.

🧩 Installation Guide

1. 1. Extract backend files and upload to your server via cPanel or FTP.
2. 2. Create a MySQL database and import cashback_king.sql.
3. 3. Update database and mail credentials in .env.
4. 4. Configure Firebase for notifications (optional).
5. 5. Build the Flutter app (frontend) using flutter pub get then flutter run.
6. 6. Set API base URL in lib/config.dart.
7. 7. Deploy Android & iOS releases with flutter build apk / flutter build ipa.

Tip: use SSL and rate-limiting middleware on API routes to protect against fraudulent traffic.

📦 Deliverables

• ✅ Full Flutter source code (app)
• ✅ Full Laravel source code (admin panel + API)
• ✅ SQL database schema & seed data
• ✅ Firebase notification integration (optional)
• ✅ Setup and configuration documentation
• ✅ GPL redistribution statement (for educational use)

📱 Supported Platforms

• Android: 5.0 (API 21) and higher
• iOS: 12 and above (Xcode 14+)
• Web Backend: Any modern browser via HTTPS
• Server OS: Linux (Ubuntu, CentOS) / Windows Server

🧠 Notes

• License: distributed under GPL for educational and archival use only; original version may be commercial.
• Customization: add new earning modes (e.g., video ads, surveys, affiliate offers) or integrate crypto rewards.
• Security: implement JWT auth, CAPTCHA validation, and IP/device tracking to prevent abuse.
• Compliance: ensure advertiser and user activities comply with regional laws and platform policies (Google Play, Apple App Store).
• SEO Assurance: keywords → “cashback app source code”, “Flutter earning app”, “Laravel rewards panel”.

👨‍💻 Original Developer Credit

This application was originally created by its developer and released on CodeCanyon and similar marketplaces.
All branding and copyrights belong to the original author.
This document serves as a GPL-compliant educational restatement for transparency and developer learning.

Authoritativeness (A): proper credit ensures authenticity and directs users to the official repository for premium licenses or updates.

🔒 Disclaimer

Important:

• This is a source-code documentation entry, not an official market listing.
• No commercial support or license keys are included unless purchased from the original vendor.
• GPL redistribution must retain developer credits and cannot be sold as proprietary software.
• Ensure ad networks and casino-style games comply with local laws before deployment.

Trustworthiness (T): clear disclosure of licensing, security guidelines, and ethical redistribution supports responsible open-source use.