Shared Expense Tracker Web App -- 2

Job ID: 40487753

Budget: $30 – $250 NZD

I need a simple web app that helps a group of flatmates track shared expenses and work out who owes whom. It must run in a normal web browser on both laptop and phone — no login, no server, and no database. Data should just be saved in the browser so it isn't lost on refresh.
Core features:

Add, rename and remove members (support 3–8 people)
Log an expense: description, amount, who paid, and who shares it
Split expenses equally OR by custom amounts
Show each person's running balance (owed vs owing)
A "Settle Up" button that calculates the simplest set of repayments — the fewest "X pays Y $Z" transactions needed to clear all debts
Edit/delete past expenses with balances recalculating automatically
Amounts shown in NZD ($)

Deliverables: the working app (files I can open in a browser and/or a live link), full source code with a short README, and a quick demo video or link showing it working. Please include up to two rounds of minor revisions.
Budget is fixed at around NZD 100 — please quote your price, your timeline, and a couple of samples of similar interactive web apps you've built. I'll choose on relevant experience, reviews, clarity of your proposal, and value for money, not lowest price alone.