Prosper

Prosper is a modern, privacy-first personal finance application designed to help you master your wealth without sacrificing your data. Built with React 19, it leverages Google Gemini AI for smart insights and offers a completely offline-capable experience with optional Cloud Sync.

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🌟 Core Philosophy

🔒 Privacy First & Local Storage

Prosper operates on a Local-First architecture.

• No Sign-Up Required: Start using it instantly. No email, no password.
• Your Data, Your Device: All financial data (transactions, budgets, wallets) is stored securely in your browser’s IndexedDB. We do not have a backend server, and we cannot see your financial logs.

🌍 Multi-Currency & Wallets

• Global Citizen: Seamlessly manage accounts in USD, IDR, EUR, JPY, GBP, and CAD.
• Real-time Normalization: The dashboard automatically converts all foreign transactions into your main currency for a unified Net Worth view.
• Unlimited Wallets: Track Cash, Bank Accounts, E-Wallets, and Credit Cards separately.

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💎 Key Features

📊 Smart Dashboard

• Net Worth Hero: Real-time aggregate of all your assets across all wallets.
• Cash Flow Analysis: Interactive Pie & Area charts to visualize Income vs Expenses over time.
• Needs vs Wants: Automatic classification to help you balance your lifestyle spending.
• Burn Rate: See exactly what percentage of your income is being spent.

🤖 Gemini AI Insights

• Personal Financial Analyst: Connect your own Google Gemini API Key.
• Context-Aware: The AI analyzes your specific spending patterns to provide concrete, actionable advice (e.g., “You spend 15% more on weekends” or “Subscription costs are rising”).
• Privacy-Conscious: Only text summaries are sent to the AI; no PII (Personally Identifiable Information) is shared.

☁️ Cloud Sync & Backup (New!)

• Google Drive Integration: Securely backup your encrypted database to your personal Google Drive.
• Cross-Device Sync: Seamlessly move your data between your Mobile and Desktop browsers using the cloud backup/restore feature.
• CSV Import/Export: Full freedom to export your data to Excel/Numbers or import from legacy systems.

💳 Comprehensive Transaction Management

• Complex Types:
  • Transfers: Move money between wallets with optional Admin Fees.
  • Subscriptions: Track recurring payments separate from daily expenses.
  • Debts & Credits: Dedicated modules to track money you owe or money owed to you.
• Smart Input: Built-in calculator in the amount field (e.g., type 50000+2500 directly).

📉 Debt & Loan Manager (New!)

• Track Outstanding Balances: Keep tabs on “I Owe” (Hutang) vs “Owed to Me” (Piutang).
• Installment Tracking: Record partial payments and see the remaining balance update automatically.
• Due Dates: Set reminders for when debts need to be settled.

🎯 Flexible Budgeting

• Custom Periods: Go beyond monthly budgets. Create Weekly, Yearly, One-Time, or Custom Date Range budgets (perfect for vacations or project-based tracking).
• Category Specific: Set limits for specific categories (e.g., “Food & Dining”).
• Visual Alerts: Progress bars change color (Green -> Orange -> Red) as you approach your limit.

🎨 Customization & Accessibility

• Dark Mode: Beautifully crafted dark theme for night usage.
• Bilingual: Full support for English and Indonesian (Bahasa Indonesia).
• PWA Support: Install Prosper as a native app on iOS, Android, and Desktop.

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🛠️ Tech Stack

• Frontend: React 19 (Vite)
• Language: TypeScript
• Styling: Tailwind CSS
• Database: IndexedDB (Client-side NoSQL)
• AI: Google GenAI SDK (Gemini 2.5 Flash)
• Cloud: Google Drive API (v3) via Google Identity Services
• Charts: Recharts
• Icons: Lucide React