Expense Tracker is a fully offline mobile finance management application built with Flutter and Dart. It is designed for freelancers solo professionals and small business owners who need a reliable and scalable expense management solution.
The project follows clean architecture principles with clear separation between UI business logic and data layers. The structure is optimized for maintainability customization and marketplace resale.
The application includes full expense tracking debt management linked contacts analytics reports export functionality and multi currency support. No backend or API configuration is required.
This source code is production ready and suitable for client projects startup launches or white label distribution.
Features
Expense Management
Add edit delete expenses
Category based organization
Date filtering
Real time total calculation
Debt Management
Track borrowed and owed money
Link debts to contacts
Dedicated debts page
Automatic due date monitoring
Automatic status update when due date arrives
Contacts
Add and manage contacts
Link financial records to contacts
View financial activity per contact
Analytics
Weekly and monthly summaries
Interactive bar charts
Pie charts for category distribution
Detailed breakdown with percentages
Export
Export to CSV
Export to PDF
Share files directly from device
Multi Currency
20 plus supported currencies
Proper currency symbol formatting
Easy switching
Technical
Flutter 3
Dart
SQLite local database
Fully offline
Repository pattern
Service layer architecture
Modular folder structure
Null safety enabled
Demo data included
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