Money Mate - Personal Expense Tracker & Budget App

Managing money shouldn't feel like a chore. That's the idea behind Money Mate a clean, intuitive mobile expense tracker app we built to help everyday users take control of their personal finances without spreadsheets or steep learning curves. The app lets users set a monthly income, log expenses into three simple categories (Essentials, Flexible, and Non-Essentials), and instantly see where their money goes through visual pie charts and category breakdowns. No spreadsheets. No confusion. Just a clear picture of spending habits in real time. This 3-category approach is what makes Money Mate different from complex budgeting apps like Mint, YNAB, or Rocket Money — it's built for users who want clarity, not complexity. Key features include real-time spending visualization with interactive pie charts, multi-currency support for international users and travelers, smart category insights that highlight overspending patterns, monthly budget calendar for upcoming expense planning, and secure JWT-based authentication for protecting financial data. The app also includes a demo mode so first-time users can explore the full experience before committing to logging real transactions. We built the entire app from scratch backend architecture with secure authentication, expense tracking engine with budget calculations, dashboard UI with data visualization using Victory Charts, demo mode for onboarding, settings, and final polish. The stack uses React Native with TypeScript for cross-platform iOS and Android delivery, Node.js with MongoDB for the backend, and a clean component-driven design system. Currently live in production serving users who want a simple, no-nonsense personal expense manager that just works.