SL Patrimônio - High-End FinTech Mobile App - Sell Project
Listed January 13, 2026
About SL Patrimônio - High-End FinTech Mobile App
Premium Flutter wealth manager with biometric security and global asset tracking.
Executive Summary: SL Patrimônio is a high-performance, production-ready mobile application designed for investors who demand security, real-time data, and multi-currency support. Built with Flutter 3.3x and a clean, scalable architecture, this app consolidates personal finances, stock market assets, and cryptocurrencies into a single, elegant interface. It operates on an Offline-First basis using Hive NoSQL, ensuring lightning-fast performance even without internet access, and synchronizes seamlessly with Firebase Cloud. Technical Core & Key Features: Biometric Gate Security: A "bank-grade" security layer integrated into the app's boot flow (main.dart). Access is strictly guarded by FaceID/TouchID/Fingerprint hardware sensors. Dual-Database Hybrid Architecture: Instant local persistence with Hive and secure cloud synchronization with Firebase Firestore, optimized with robust data-type casting for error-free sync. Real-Time Market Engine: Automated integration with global finance APIs (Brapi & CoinGecko) for real-time stock and crypto price tracking, including automatic ticker identification and logo fetching. Dynamic Multi-Currency & i18n: Built-in support for BRL, USD, and EUR. Users can switch languages (PT/EN) and currencies on the fly without restarting the app, thanks to a reactive ValueNotifier system. Professional Reporting: Integrated engine to generate and export detailed financial reports in PDF format. Tech Stack: Frontend: Flutter (Dart) Local Storage: Hive (NoSQL) Backend: Firebase (Auth & Firestore) Native Android: Kotlin Script (KTS), SDK 36 (Android 15/16 Ready) Native iOS: Fully configured Info.plist and AppDelegate.swift with biometric permissions enabled. Deployment & iOS Status: The project is delivered as a "Turnkey Solution". Android: 100% Tested and production-ready. iOS: The codebase is fully structured and configured for the Apple ecosystem. All biometric permissions (FaceID) and plist configurations are implemented according to Apple’s latest standards. Note: Final physical iPhone testing is pending due to development in a Windows/Linux environment. However, the code is 100% compliant with official documentation and ready for Xcode compilation and immediate deployment on macOS. Why Acquire SL Patrimônio? This is not just an app; it’s a scalable fintech infrastructure. It’s perfect for entrepreneurs looking for an exit-ready product or financial consultants wanting a White Label solution to offer their clients. With high eCPM potential in the finance niche, this asset is a "money-magnet" for AdMob or subscription-based revenue models. Codebase reviewed and validated by a Senior Lead QA, ensuring architectural stability and production-ready performance.
Next step: <p><strong>Monetization Launch:</strong> The app is technically ready for AdMob integration and In-App Subscriptions (SaaS model), targeting high-eCPM financial keywords.</p><p><strong>Global Scaling:</strong> Leverage the dynamic i18n system (English/Portuguese) and multi-currency engine (USD/BRL/EUR) to launch in Tier-1 markets immediately.</p><p><strong>White Label Sales:</strong> Use the robust codebase to sell customized versions to financial advisors, brokers, or wealth management firms.</p><p><strong>Automated Scalability:</strong> The Firebase backend allows for scaling from 1 to 100k+ users with zero server management overhead.</p>
For sale
Asking price: $4,500 USD
What's included
Source code, All related design work, All related data
Full Source Code: Complete Flutter project with Clean Architecture, ready for production. Backend Infrastructure: Fully integrated Firebase environment (Auth & Firestore) with pre-configured security rules. Security Suite: Bank-grade Biometric Authentication system (FaceID/TouchID) for both Android and iOS. Design Assets: All premium dark-mode UI assets, custom icons, and branding materials. Documentation: A comprehensive technical handover guide for Firebase setup and deployment. Market Engines: Built-in API connectors for real-time Stock and Crypto tracking.
Reason for selling
I am selling this high-quality asset to raise capital for my next research and development phase in AI-driven financial algorithms. Having completed the 'Gold Release' of SL Patrimônio, I want to ensure it lands in the hands of an investor or company that can scale its marketing and user acquisition globally.
Project metrics
Average Monthly Revenue: Undisclosed
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