Project Description
CaptainLedger is a comprehensive personal finance management application designed with one fundamental principle in mind: your financial data belongs to you. In a digital landscape dominated by intrusive apps that monetize user data through ads, tracking, and cloud storage, CaptainLedger offers a refreshing alternative—complete control over your data combined with powerful financial tools.
Whether you’re an individual looking to track expenses, manage budgets, monitor investments, or keep tabs on loans, CaptainLedger delivers a robust yet user-friendly experience. It empowers users to manage their finances seamlessly across multiple devices while maintaining uncompromising privacy and security.
Core Philosophy
Privacy-First: By default, all your financial data is stored locally on your device. No third-party servers, no data harvesting, no ads, and no corporate surveillance. You decide if and when to sync your data to a server you control.
User Empowerment: Control your money with smart tools and detailed analytics, not with intrusive algorithms or marketing gimmicks.
Open Source & Transparent: The entire codebase is open under the AGPL-3.0 license, ensuring transparency, community collaboration, and freedom from vendor lock-in.
Key Features
1. Privacy & Security
All data is encrypted and stored locally by default.
Optional self-hosted server sync means your data never leaves your control.
Robust JWT authentication and device trust systems protect your account.
Offline-first design guarantees access without internet connectivity.
2. Cross-Platform Support
Built with React Native and Expo Router for native-like experiences on Android, iOS, and the Web.
Single codebase ensures feature parity and consistent UX across all platforms.
3. Expense & Budget Management
Add, categorize, and track expenses and incomes easily.
Create budgets with notifications to stay on track.
Manage recurring transactions and loans.
4. Multi-Currency & Currency Conversion
Support for multiple currencies with real-time exchange rates.
Offline mode uses cached rates to convert currencies when internet is unavailable.
5. Powerful Analytics & Insights
Visualize spending trends with detailed charts and reports.
Analyze budget adherence, category-wise spending, and cash flow.
Export reports for tax or personal record keeping.
6. Optional Sync & Collaboration
Connect to your own backend server for cross-device syncing.
Server is powered by a secure Flask API and PostgreSQL database.
Sync architecture designed to preserve privacy and data integrity.
Whether you’re an individual looking to track expenses, manage budgets, monitor investments, or keep tabs on loans, CaptainLedger delivers a robust yet user-friendly experience. It empowers users to manage their finances seamlessly across multiple devices while maintaining uncompromising privacy and security.
Core Philosophy
Privacy-First: By default, all your financial data is stored locally on your device. No third-party servers, no data harvesting, no ads, and no corporate surveillance. You decide if and when to sync your data to a server you control.
User Empowerment: Control your money with smart tools and detailed analytics, not with intrusive algorithms or marketing gimmicks.
Open Source & Transparent: The entire codebase is open under the AGPL-3.0 license, ensuring transparency, community collaboration, and freedom from vendor lock-in.
Key Features
1. Privacy & Security
All data is encrypted and stored locally by default.
Optional self-hosted server sync means your data never leaves your control.
Robust JWT authentication and device trust systems protect your account.
Offline-first design guarantees access without internet connectivity.
2. Cross-Platform Support
Built with React Native and Expo Router for native-like experiences on Android, iOS, and the Web.
Single codebase ensures feature parity and consistent UX across all platforms.
3. Expense & Budget Management
Add, categorize, and track expenses and incomes easily.
Create budgets with notifications to stay on track.
Manage recurring transactions and loans.
4. Multi-Currency & Currency Conversion
Support for multiple currencies with real-time exchange rates.
Offline mode uses cached rates to convert currencies when internet is unavailable.
5. Powerful Analytics & Insights
Visualize spending trends with detailed charts and reports.
Analyze budget adherence, category-wise spending, and cash flow.
Export reports for tax or personal record keeping.
6. Optional Sync & Collaboration
Connect to your own backend server for cross-device syncing.
Server is powered by a secure Flask API and PostgreSQL database.
Sync architecture designed to preserve privacy and data integrity.
Technologies Used
1
Stars
Jun 2025
Last Updated
Quick Actions
Project Preview

Project Information
Type: Open Source
Category: Cross-platform
Status: In Progress
Created: June 25, 2025