AI portfolio case study · Product design and build

Party Planner

A planner for every kind of party. Pick the type, and the screen takes its colors and its checklist from it. Plan several events at once, each with its own budget, catering, invites, and team.

My roleDesigner and builder

Built withVibe coded with Claude

StatusWorking prototype

The problem

Party planning lives in too many places at once

A single party might have a budget in one spreadsheet, a guest list in a text thread, a vendor list in email, and a checklist on a napkin. Anyone who hosts more than one event at a time has to keep all of it straight.

I wanted one place per event, with the same few tools each time, so the next party starts from a plan instead of a blank page.

What it does

Everything for one event, on one screen

Seven party types, each with its own look

Wedding, graduation, baby shower, bridal shower, birthday, holiday, and general party. Each type sets the header colors, the emoji, and a starter checklist. A wedding starts with venue and officiant. A graduation starts with the cake and the photo display. Every checklist can be edited.

Several events, one home screen

Each party is a card with its own color, a countdown, a task progress bar, and its spending.

Checklist

Tasks with a done check, a note, and an assignee from your team. Finishing one brings a little confetti.

Budget

Set a total and categories with a budget and an amount spent. A donut shows where the money went, and the remaining amount turns red when you go over.

Catering

Headcount, a menu with costs, and the cost per guest, updated as you type.

Invites

Guests move through Invited, Yes, No, and Maybe with one tap. Add a +1, and copy invite text with the date and place filled in.

Decor and other considerations

Two lists for the things that don’t fit anywhere else, like balloon arches, parking, rentals, and a weather plan.

Team

Add the people helping you plan, with a role for each. Assign tasks to them, and their names follow the task.

The screens

What it looks like on the phone

These screenshots come from the working app at phone size, filled with sample parties. Swipe to see them all.

Home screen listing four parties, each in its own color, with countdowns and progress — The home screen: several parties at once, each in its own color, with a countdown and progress.

A graduation party overview with a navy header, a countdown, and stat cards — A graduation: the header, the countdown, and the overview numbers.

The checklist with finished and open tasks — The checklist, with tasks that can be assigned to team members.

The budget screen with a spending donut and category budgets — Budget: totals, a spending donut, and each category.

The invites list with status buttons and plus-one toggles — Invites: one-tap statuses and plus-ones.

A wedding overview in a rose color theme — The same layout in the wedding theme.

Design decisions

What shaped the screens

The party type sets the moodThe colors and emoji come from the type you choose, so a graduation and a baby shower don’t look or feel the same.

Fun, but still easy to scanThe bold headers and playful shapes stay out of the way of the numbers. Budget totals and task counts use plain, large type.

Motion that rewards, not distractsConfetti marks a finished task, a yes, or a new party. It turns off for anyone who has reduced motion turned on.

One list per kind of thingChecklist, decor, and other considerations use the same row pattern, so learning one teaches the others.

How it was built

Vibe coded in conversation with Claude

I described each screen in plain language, reviewed it on my phone, and asked for the next change. Claude wrote most of the code. I made the product calls: which tools each event needs, how the party types differ, and where the playful details belong.

I also tested the layout at phone width and fixed the spots where content ran past the screen edge.

Status and next steps

A working prototype with sample data

Everything saves on the device it is used on. The team members are names in the app rather than accounts, so nobody else can see the plan yet.

Shared plans, so a co-host or a partner can add tasks and guests from their own phone
Reminders for invites that haven’t been answered
Vendor contacts with their own notes and payment status
Printable or shareable guest lists for the venue

Need something like this for your business?

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Party Planner Case Study