House Fund

House Fund

Your Household Assistant: Designing Everyday Support Beyond Bill Splitting

Your Household Assistant: Designing Everyday Support Beyond Bill Splitting

House Fund

Your Household Assistant: Designing Everyday Support Beyond Bill Splitting

Duration

3 Weeks

My Role

Team Leader, UI/UX Designer

Project Type

UI Bootscamp Project

Project Focus

Design System, UI Flow, Prototype, Handoff

Problem

"Splitting bills with my roommates is such a pain."
"It’s so awkward asking them to pay me back."
"I bought detergent, then realised my roommate already did."
"Whose turn is it to clean the kitchen anyway?"

"Splitting bills with my roommates is such a pain."
"It’s so awkward asking them to pay me back."
"I bought detergent, then realised my roommate already did."
"Whose turn is it to clean the kitchen anyway?"

"Splitting bills with my roommates is such a pain."
"It’s so awkward asking them to pay me back."
"I bought detergent, then realised my roommate already did."
"Whose turn is it to clean the kitchen anyway?"

Nowadays, people who live together aren’t necessarily related — they simply share an accommodation.
This living arrangement brings shared responsibilities, especially when it comes to household expenses.

Solution

A Smooth Expense-Splitting App Tailored for Housemates

A Smooth Expense-Splitting App Tailored for Housemates

A Smooth Expense-Splitting App Tailored for Housemates

A platform designed to simplify shared living for roommates. We focus on managing shared expenses effortlessly, helping you track what’s owed, split bills, and manage household purchases, all while reducing the awkwardness of payment reminders with automatic notifications.

From UI/UX to Business Impact (Roadmap / Business Line)

User Attention = Revenue Possibility

By embedding the app into everyday household routines—splitting bills, tracking shared items, co-editing grocery lists, and assigning chores (in future iterations)—the product goes beyond solving pain points. It cultivates repeated user engagement, building daily habits that ultimately form a strong foundation for monetisation.

Acquire Goal: Increase first-time users

  • Target the main pain points (bill-splitting, expense reminders).

  • Launch with a free version to quickly capture households.

  • Build early dependency by showing immediate value.

Convert Goal: Drive free → paid conversion

Introduce premium subscriptions to unlock convenience and remove ads.

  • Freemium model:

    • Free Tier: Up to 2 members, with ads.

    • Family Subscription: Unlimited members, ad-free, priority features.

  • Explore partnerships & contextual ads (e.g., groceries, cleaning services, e-commerce).

Retain Goal: Increase stickiness, reduce churn

  • Deepen integration into daily life with:

    • Foster intimacy with a lightweight, “family-like” group chat (relaxed, thematic)

    • Chore scheduling

    • Automatic purchases (retail API)

  • Future expansion: support office groups or trip planning for broader use cases.

From UI/UX to Business Impact (Roadmap / Business Line)

User Attention = Revenue Possibility

By embedding the app into everyday household routines—splitting bills, tracking shared items, co-editing grocery lists, and assigning chores (in future iterations)—the product goes beyond solving pain points. It cultivates repeated user engagement, building daily habits that ultimately form a strong foundation for monetisation.

  1. Acquire Goal: Increase first-time users

  • Target the main pain points (bill-splitting, expense reminders).

  • Launch with a free version to quickly capture households.

  • Build early dependency by showing immediate value.

  1. Convert Goal: Drive free → paid conversion

Introduce premium subscriptions to unlock convenience and remove ads.

  • Freemium model:

    • Free Tier: Up to 2 members, with ads.

    • Family Subscription: Unlimited members, ad-free, priority features.

  • Explore partnerships & contextual ads (e.g., groceries, cleaning services, e-commerce).

  1. Retain Goal: Increase stickiness, reduce churn

  • Deepen integration into daily life with:

    • Foster intimacy with a lightweight, “family-like” group chat (relaxed, thematic)

    • Chore scheduling

    • Automatic purchases (retail API)

  • Future expansion: support office groups or trip planning for broader use cases.

Design - Hi-Fi Prototype

Hi-Fi Prototype Completion Reached Nearly 100% in Just 3 Weeks

Hi-Fi Prototype Completion Reached Nearly 100% in Just 3 Weeks

Hi-Fi Prototype Completion Reached Nearly 100% in Just 3 Weeks

Main Features​​

  • Landing page: Allows users to track debt relationships with their roommates.

  • Tracker: Helps users manage past shared expense records and track spending easily.

  • List: A shared shopping list for essential household items that can be edited collaboratively.

  • Add new expense: Add a new shared expense.

  • Profile: Personal settings, including avatar customisation.

  • Notification: Clear notifications across different categories, and the ability to remind roommates to make payments.

  • Onboarding: Guides first-time users through the key features of the app for a smooth introduction.

  • Landing page: Allows users to track debt relationships with their roommates.

  • Onboarding: Guides first-time users through the key features of the app for a smooth introduction.

  • Login

  • Add new expense: Add a new shared expense.

  • Tracker: Helps users manage past shared expense records and track spending easily.

  • To-Buy List: A shared shopping list for essential household items that can be edited collaboratively.

  • Notification: Clear notifications across different categories, and the ability to remind roommates to make payments.

  • Profile: Personal settings, including avatar customisation.

Login + Onboarding + Landing Page

Add New Expense

Tracker

To-Buy List

Profile

Notification

User Testing & Iteration

Get out of the building! Usability increased 42% after the first iteration.

Get out of the building! Usability increased 42% after the first iteration.

Get out of the building! Usability increased 42% after the first iteration.

Tracker

Add New Expense

To-Buy List

Define Target User

"I’m extremely busy every day and don’t want to spend extra time managing household expenses."

"I’m extremely busy every day and don’t want to spend extra time managing household expenses."

"I’m extremely busy every day and don’t want to spend extra time managing household expenses."

Our target users are housemates who want to manage shared living expenses efficiently and harmoniously.
They aim to split costs and track budgets with minimal time and effort, while avoiding awkward conversations about money. Common frustrations include forgetting to make transfers, spending too much time managing finances, and running out of household essentials like tissues or detergent. By streamlining these processes, we help users stay organised, avoid conflict, and maintain a comfortable shared living environment.

User Journey Map

Easy Expense Tracking Is Key

Easy Expense Tracking Is Key

Easy Expense Tracking Is Key

Based on the user journey map, we voted and selected four key opportunities and insights that guided us toward potential solutions.

Competitive Audits & Information Architecture

Quickly Learn from the Referenced Product

Quickly Learn from the Referenced Product

Quickly Learn from the Referenced Product

Due to the three-week time constraint, we needed to begin designing immediately after defining our key features.
Although conducting a detailed competitor analysis may seem time-consuming, it turned out to be an efficient way to quickly gain insights into how similar features and user flows could be structured.

Design System

Design While Building the Design System for Speed and Consistency

Design While Building the Design System for Speed and Consistency

Design While Building the Design System for Speed and Consistency

The primary color of this product is green, aiming to convey a sense of relaxation and comfort to alleviate the stress associated with money management. For typography, Space Grotesk is chosen for headings to add a playful and charming touch to the overall visual, while Roboto is used for body text to offer a range of typographic variations. Cute characters are integrated into the design to ensure that users do not feel bored, despite it being a financial management tool.

Design - Wireframe

Fast Iteration Through Wireframing and Discussion

Fast Iteration Through Wireframing and Discussion

Fast Iteration Through Wireframing and Discussion

Wireframes

Wireframes

Final Landing Page

Final Landing Page

Challenges & Takeaway

Ensuring Design Consistency: From Communication Misunderstandings to Iterative Solutions

Ensuring Design Consistency: From Communication Misunderstandings to Iterative Solutions

Ensuring Design Consistency: From Communication Misunderstandings to Iterative Solutions

Design is an iterative process that requires testing actual results to validate initial assumptions. Even if a solution seems to be found early on, maintaining an iterative approach is essential. Additionally, considering factors such as timelines, manpower, and business goals is necessary for optimizing resource usage at different stages of the project.

Too much scope with limited time and manpower

Too much scope with limited time and manpower

Too much scope with limited time and manpower

This experience was very realistic and reminded me of past work situations, especially when collaborating with others. Many factors are out of our control, so adjusting my mindset became crucial. Changing my goal allowed me to stay motivated and understand what I was working so hard for. Although I didn't meet the standards I initially set for myself, learning to find the best solution within constraints is an equally important lesson.

Personal Achievement

Successfully Boosted My UI and Figma Skills

Successfully Boosted My UI and Figma Skills

Successfully Boosted My UI and Figma Skills

After these 3 months in the UI Bootcamp, I can confidently say that I’ve become skilled in using Figma, understanding design systems, and thinking from a product design perspective. More than just self-growth, my progress was also recognised by the teaching team — I was honoured to receive the “Most Improved Award,” given to only one participant out of over 200.