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PennyWise

3 devlogs
8h 23m 39s

My personal wallet. Aimed to help myself stay on top of my money without the overwhelm. One place to track what I spend, what’s coming in, and what bills are due — across cash, cards, and digital accounts, in whatever currency.

This project uses AI

Used Claude Code for debugging, code completion, and code explaining:)

Demo Repository

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yyong

Shipped this project!

Hours: 8.39
Cookies: 🍪 110
Multiplier: 13.14 cookies/hr

I built PennyWise: a personal budget tracker that lets you manage cash, bank cards, and digital accounts in one place. You can log expenses, track income, set recurring bills with due day alerts, and work across 10 currencies with live exchange rates.

The hardest part was setting up the data layer: every change saves to both localStorage and Supabase simultaneously, so the app works instantly on load while staying synced to the cloud across devices.

Most proud of actually shipping it.

yyong

Project Complete! I’ve spent somethme testing and have changed many small details in the project, such as adding instruction lines, input constraints…

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yyong

Here’s what I did in the last 3 days:

  1. Made a log in page and a DB
  2. Refined the button “Add Expense” and “Add Income”
  3. Fixed all the small bugs:)
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yyong

I’m working on my first project! This is so exciting. I can’t wait to share more updates as I build.

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