Skyler
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Personal project / 2025–2026

Financial Tracker

A personal budgeting tool designed for a phone rather than a compressed desktop dashboard. The PWA stores everything in IndexedDB, works offline, tracks monthly limits and categories, and supports portable JSON backups. I later carried the same product into an Expo and React Native codebase to explore native navigation, haptics, and local storage.

Role

Product design and web/native implementation

Year

2025–2026

Full stack

9 tools

Financial Tracker mobile budget overview with sample data
Project interface — live capture or reconstruction from the working implementation

Full stack

  • 01React 19
  • 02TypeScript
  • 03Bun
  • 04IndexedDB
  • 05Service Worker
  • 06PWA
  • 07Expo
  • 08React Native
  • 09Zustand

01

Built around

  • All financial data stays on the device; the app has no account system or remote database.
  • Monthly limits, allocations, spending, remaining money, and overspending warnings update together.
  • The same product model now exists in a separate Expo/React Native implementation, not just a responsive web wrapper.

02

If I kept going

  • Bring the web and native versions to feature parity with a shared, versioned data format.
  • Offer optional encrypted sync without making an account mandatory for local use.
Financial Tracker monthly budget history
Financial Tracker settings and local data controls
PWA source on GitHub Native app on GitHub Open the mobile PWA
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