YoFinance | Expenses Manager and Budget Tracker Flutter App

Expense Manager (YoFinance) is a premium, offline-first personal finance and expense tracking mobile application template built with Flutter. Designed for entrepreneurs, agencies, and independent developers, it delivers a modern fintech user experience with rich data visualizations, dynamic custom categories, monthly budget management, CSV spreadsheet export, and Google AdMob monetization.

Get the full source code for both iOS and Android, reskin the entire app in under 15 minutes via the centralized configuration hub (lib/config.dart), and publish it to the App Store and Google Play as your own!

Manage your expenses, income, and monthly budgets seamlessly! All data is stored locally on the device with zero monthly server costs and 100% user privacy.

ADVANTAGES & KEY FEATURES:

• Mature Fintech Dashboard: Executive Net Balance hero card, interactive categorical donut chart, and dual dropdown filters (Period & Transaction Type).
• Monthly Budget Management: Set monthly spending limits with real-time visual progress status (Safe, Warning, Exceeded) and remaining balance calculations.
• Dynamic Custom Categories: Users can create, edit, and delete their own custom expense and income categories with curated icons and colors.
• Dedicated Income & Cashflow Screen: Comprehensive income management with category breakdowns and transaction logs.
• 100% Offline-First (No Server Costs): Powered by the ultra-fast local NoSQL Isar Database with 16KB page alignment support for modern Android devices. Zero monthly backend hosting fees!
• CSV Spreadsheet Data Export: One-tap export to standard CSV format shared instantly via the native system share sheet (AirDrop, Email, WhatsApp, Drive, etc.).
• Interactive Charts & Analytics: Smooth annual spending trend curve and categorized expense breakdown powered by fl_chart.
• Material 3 Dynamic Theming: Seamless Light, Dark, and System theme switching with persistent user preferences.
• Turnkey Reskinning (Under 15 Minutes): Centralized configuration hub (lib/config.dart) to change app name, branding seed colors, default currencies, AdMob IDs, and feature flags in one file.
• Google AdMob Monetization: Pre-integrated Banner and full-screen Interstitial ads with simple on/off toggle flags.
• Multi-Currency Support: Built-in currency selector supporting 14+ global currencies (USD, EUR, GBP, CAD, AUD, JPY, INR, etc.) and locale detection.
• Clean Code & Test Suite: Clean modular architecture with passing unit/widget tests and automated screen export scripts.

WHAT YOU GET:

• Complete Flutter Application Source Code (iOS & Android)
• Local Offline Database Integration (Isar NoSQL)
• Comprehensive Step-by-Step Documentation (Setup, 15-Minute Reskinning, Monetization, App Store & Google Play Submission)
• Vector icons, launcher assets, and UI components
• Automated Screen Export & Packaging scripts (deploy.sh, export_screens.sh)
• Free lifetime updates and customer support

IMPORTANT NOTICE: THIRD-PARTY SERVICES & COSTS:

Buyer Responsibility: The buyer is solely responsible for creating, maintaining, and funding any third-party accounts, developer memberships, or service fees necessary for building, deploying, and monetizing this application. This includes Google AdMob monetization accounts, Google Play Developer Console accounts ($25 one-time), Apple Developer Program memberships ($99/year), and any optional third-party cloud services or synchronization APIs (e.g., Firebase) that you may choose to integrate.

TECHNICAL SPECIFICATIONS:

• Framework: Flutter 3.x / Dart 3.x
• Target Platforms: iOS & Android
• iOS Compatibility: iOS 16.0+ (Xcode 15 / 16 ready)
• Android Compatibility: Android 5.0 (API 21) through Android 15 (API 35, 16KB page alignment compliant)
• IDE: VS Code, Android Studio

Version 1.2.0 (2024-09-04)
- Redesigned Home screen with mature Fintech UI and executive Net Balance hero card
- Added modern dropdown filters for Time Period (Weekly, Monthly, Yearly, All Time) and Type
- Added interactive Donut Chart visualization on Home dashboard
- Added human-friendly date grouping ("Today", "Yesterday") with transaction counters
- Fixed Stats screen layout constraints and removed top gap for true full-height presentation
- Fixed annual spending line chart coordinate scaling and smooth trend curve
- Re-ordered spending categories breakdown descending by volume with squircle badges
- Added automated screen export integration test suite (Retina screenshots)
- Updated minimum iOS deployment target to 16.0 for modern Xcode/CocoaPods compatibility

Version 1.1.0 (2024-05-10)
- Added Centralized Configuration Hub (lib/config.dart) for turnkey 15-minute reskinning
- Added Dynamic Custom Categories with custom icon and color picker
- Added dedicated Income & Cashflow management screen
- Added Monthly Budget Targets with real-time visual progress card
- Added CSV spreadsheet data export with native system sharing
- Added real-time transaction search and filtering
- Upgraded theming to Material 3 with Light, Dark, and System theme persistence
- Replaced external git modal dependencies with native modal bottom sheets
- Complete buyer documentation overhaul with MkDocs guide

Version 1.0.0 (2022-11-02)
- Initial release with expense tracking, Isar local database, and Google AdMob integration