Money King

Premium Flutter expense tracker with budgets, cloud sync, passcode, and fingerprint unlock.

Repository: bhedanikhilkumar-code/money-king

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Executive Overview

Premium Flutter expense tracker with budgets, cloud sync, passcode, and fingerprint unlock.

This README is written as a portfolio-grade project document: it explains the product idea, technical approach, architecture, workflows, setup process, engineering standards, and future roadmap so a reviewer can understand both the codebase and the thinking behind it.

Recruiter Quick Scan

What to look for	Why it matters
Biometric security	Fingerprint + passcode lock shows security awareness
Budget tracking	Monthly budgets with visual progress - real finance feature
Cloud sync via Supabase	Real-time sync demonstrates backend integration
Category-based expenses	Smart categorization for financial insights
Flutter + Dart	Cross-platform mobile skills

Key Features

Feature	Description
Income/Expense entry	Fast entry with categories
Budgets	Set monthly budgets per category
Charts	Visual spending insights
App lock	Fingerprint + passcode protection
Cloud sync	Supabase-powered sync

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Product Positioning

Question	Answer
Who is it for?	Users, reviewers, recruiters, and developers who want to understand the project quickly.
What problem does it solve?	It turns a practical idea into a structured software project with clear workflows and maintainable implementation direction.
Why it matters?	The project demonstrates product thinking, stack selection, feature planning, and clean documentation discipline.
Current focus	Professional polish, understandable architecture, and portfolio-ready presentation.

Repository Snapshot

Area	Details
Visibility	Public portfolio repository
Primary stack	Flutter, Dart, Supabase
Repository topics	biometric-auth, budget-tracker, cloud-sync, dart, expense-tracker, flutter, mobile-app, personal-finance
Useful commands	flutter pub get, flutter run, flutter analyze, flutter test
Key dependencies	flutter, cupertino_icons, local_auth, provider, shared_preferences, fl_chart, intl, uuid, crypto, supabase_flutter, flutter_dotenv

Topics

biometric-auth · budget-tracker · cloud-sync · dart · expense-tracker · flutter · mobile-app · personal-finance

Key Capabilities

Capability	Description
Expense capture	Fast income/expense entry with categories, amounts, and practical money records.
Budget visibility	Budget-focused structure for tracking spending habits and financial progress.
Insight layer	Charts, summaries, and dashboards make the data easier to understand.
Security-minded	Personal finance workflows are designed with privacy and app-lock expectations in mind.

Documentation Hub

Document	Purpose
Architecture	System layers, workflow, data/state model, and extension points.
Case Study	Product framing, decisions, tradeoffs, and portfolio story.
Roadmap	Practical next steps for turning the project into a stronger product.
Quality Standard	Repository health checks, review standards, and quality gates.
Review Checklist	Final share/recruiter review checklist for a stronger GitHub impression.
Contributing	Branching, commit, review, and quality guidelines.
Security	Responsible disclosure and safe configuration notes.
Support	How to ask for help or report issues clearly.
Code of Conduct	Collaboration expectations for respectful project activity.

Detailed Product Blueprint

Experience Map

flowchart TD
    A[Discover project purpose] --> B[Understand main user workflow]
    B --> C[Review architecture and stack]
    C --> D[Run locally or inspect code]
    D --> E[Evaluate quality and roadmap]
    E --> F[Decide next improvement or deployment path]

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Feature Depth Matrix

Layer	What reviewers should look for	Why it matters
Product	Clear user problem, target audience, and workflow	Shows product thinking beyond tutorial-level code
Interface	Screens, pages, commands, or hardware interaction points	Demonstrates how users actually experience the project
Logic	Validation, state transitions, service methods, processing flow	Proves the project can handle real use cases
Data	Local storage, database, files, APIs, or device input/output	Explains how information moves through the system
Quality	Tests, linting, setup clarity, and roadmap	Makes the project easier to trust, extend, and review

Conceptual Data / State Model

Entity / State	Purpose	Example fields or responsibilities
User input	Starts the main workflow	Form values, commands, uploaded files, device readings
Domain model	Represents the project-specific object	Transaction, note, shipment, event, avatar, prediction, song, or task
Service layer	Applies rules and coordinates actions	Validation, scoring, formatting, persistence, API calls
Storage/output	Keeps or presents the result	Database row, local cache, generated file, chart, dashboard, or device action
Feedback loop	Helps improve the next interaction	Status message, analytics, error handling, recommendations, roadmap item

Professional Differentiators

• Documentation-first presentation: A reviewer can understand the project without guessing the intent.
• Diagram-backed explanation: Architecture and workflow diagrams make the system easier to evaluate quickly.
• Real-world framing: The README describes users, outcomes, and operational flow rather than only listing files.
• Extension-ready roadmap: Future improvements are scoped so the project can keep growing cleanly.
• Portfolio alignment: The project is positioned as part of a consistent, professional GitHub portfolio.

Architecture Overview

flowchart LR
    User[User] --> UI[Flutter Screens & Widgets]
    UI --> State[State / Providers]
    State --> Services[Services & Business Logic]
    Services --> Storage[(Local Storage / Device APIs)]
    Services --> Platform[Native Platform Capabilities]

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Core Workflow

sequenceDiagram
    participant U as User
    participant A as Application
    participant L as Logic Layer
    participant D as Data/Device Layer
    U->>A: Add transaction
    A->>L: Validate and categorize
    L->>D: Persist entry
    D-->>L: State/result
    L-->>A: Refresh budgets and charts
    A-->>U: Updated experience

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How the Project is Organized

mymoney/
├── 📁 lib
│   ├── 📁 backend
│   ├── 📁 models
│   ├── 📁 providers
│   ├── 📁 screens
│   ├── 📁 services
│   ├── 📁 theme
│   └── 📄 main.dart
├── 📁 assets
│   └── 📁 branding
├── 📁 android
│   ├── 📁 app
│   ├── 📁 gradle
│   ├── 📄 build.gradle
│   ├── 📄 gradle.properties
│   ├── 📄 gradlew
│   ├── 📄 gradlew.bat
│   └── 📄 key.properties.example
├── 📁 web
│   ├── 📁 icons
│   ├── 📄 favicon.png
│   ├── 📄 index.html
│   └── 📄 manifest.json
├── 📁 test
│   └── 📄 widget_test.dart
├── 📁 deliverables
│   ├── 📄 Money-King-v1.0.3-live-release.apk
│   ├── 📄 Money-King-v1.0.4-live-release.apk
│   ├── 📄 Money-King-v1.0.5-premium-home-release.apk
│   ├── 📄 Money-King-v1.0.6-fintech-home-release.apk
│   ├── 📄 Money-King-v1.0.7-secure-lock-release.apk
│   ├── 📄 MyLedger-v1.0.2-live-release.apk
│   └── 📄 MyMoney-Ledger-v1.0.1-live-debug.apk
├── 📁 ios
│   ├── 📁 Flutter
│   ├── 📁 Runner
│   ├── 📁 Runner.xcodeproj
│   ├── 📁 Runner.xcworkspace
│   └── 📁 RunnerTests
├── 📁 linux
│   ├── 📁 flutter
│   ├── 📄 CMakeLists.txt
│   ├── 📄 main.cc
│   ├── 📄 my_application.cc
│   └── 📄 my_application.h
├── 📁 macos
│   ├── 📁 Flutter
│   ├── 📁 Runner
│   ├── 📁 Runner.xcodeproj
│   ├── 📁 Runner.xcworkspace
│   └── 📁 RunnerTests
├── 📁 supabase
│   ├── 📁 migrations
│   └── 📄 config.toml
├── 📁 tool
├── 📁 tools
│   └── 📄 generate_branding.py
├── 📁 windows
│   ├── 📁 flutter
│   ├── 📁 runner
│   └── 📄 CMakeLists.txt
├── 📄 analysis_options.yaml
├── 📄 BACKEND_SETUP.md
├── 📄 mymoney.iml
├── 📄 pubspec.lock
├── 📄 pubspec.yaml

Engineering Notes

• Separation of concerns: UI, business logic, data/services, and platform concerns are documented as separate layers.
• Scalability mindset: The project structure is ready for new screens, services, tests, and deployment improvements.
• Portfolio quality: README content is designed to communicate value before someone even opens the code.
• Maintainability: Naming, setup steps, and roadmap items make future work easier to plan and review.
• User-first framing: Features are described by the value they provide, not just the technology used.

Local Setup

# 1. Install dependencies
flutter pub get

# 2. Run on a connected device/emulator
flutter run

# 3. Analyze code quality
flutter analyze

# 4. Run tests when available
flutter test

Suggested Quality Checks

Before shipping or presenting this project, run the checks that match the stack:

Check	Purpose
Format/lint	Keep code style consistent and reviewer-friendly.
Static analysis	Catch type, syntax, and framework-level issues early.
Unit/widget tests	Validate important logic and user-facing workflows.
Manual smoke test	Confirm the main flow works from start to finish.
README review	Ensure documentation matches the actual repository state.

Roadmap

• Recurring transaction templates
• CSV/PDF export for monthly reports
• Budget alerts and category-level recommendations
• Optional multi-device sync hardening

Professional Review Checklist

• Clear project purpose and audience
• Feature list aligned with real user workflows
• Architecture documented with diagrams
• Screenshots added for quick recruiter review
• Setup steps tested on a clean machine
• Environment variables documented without exposing secrets
• Tests/lint commands documented
• Roadmap shows practical next steps

Screenshots / Demo Notes

Add these assets when available to make the repository even stronger:

Asset	Recommended content
Hero screenshot	Main dashboard, home screen, or landing page
Workflow GIF	10-20 second walkthrough of the core feature
Architecture image	Exported version of the Mermaid diagram
Before/after	Show how the project improves an existing workflow

Contribution Notes

This project can be extended through focused, well-scoped improvements:

1. Pick one feature or documentation improvement.
2. Create a small branch with a clear name.
3. Keep changes easy to review.
4. Update this README if setup, features, or architecture changes.
5. Open a pull request with screenshots or test notes when possible.

License

Add or update the license file based on how you want others to use this project. If this is a portfolio-only project, document that clearly before accepting external contributions.

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Built and documented with a focus on professional presentation, practical workflows, and clean engineering communication.