Case study / Mobile application

HomeFlow

A collaborative household management app designed to bring shared expenses, shopping lists and everyday organization into one simple mobile experience.

Role
Product design & development
Type
Mobile application
Focus
Household collaboration
Stack
FlutterDartFirebase
The Miller House

You're owed

€128.40

This month

€212.40

Shared items

6

Recent activity

Groceries · paid by A+€42.80
Utilities · paid by K+€68.00

Shopping list · 3 items left

Project overview

HomeFlow was designed around a simple everyday problem: shared household information is often spread across messages, notes, banking apps and separate shopping lists.

The goal was to create one shared space where household members can keep track of expenses, shopping and everyday organization together.

Summary

  • Mobile application
  • Shared household
  • Expense tracking
  • Shopping lists
  • Collaborative data
  • Cross-platform

The problem

Shared household tasks are simple individually — but fragmented together.

  • Expenses may be tracked separately.
  • Shopping lists may live in messages or notes.
  • Household members need shared visibility.
  • It should be easy to see who paid for what.
  • Everyday information should not require multiple apps.
  • The experience needs to remain lightweight and fast.
  • Shared data should stay synchronized across users.

Expense or task appears

Send a message

Manual step

Add a note

Manual step

Remember who paid

Manual step

Update another person

Manual step

Repeat

The solution

One shared place for everyday household organization.

HomeFlow brings the most common shared household workflows into one application and keeps them visible to everyone in the household.

  • Shared household space
  • Expense overview
  • Expense entry
  • Balances / who owes whom
  • Shopping lists
  • Shared updates
  • Real-time synchronized data
  • Simple mobile navigation

Open household

Add expense or item

Shared data updates

Everyone sees the current state

Built around everyday shared routines

01

Shared expenses

Household members can record shared expenses in one place and keep the current balance easier to understand.

02

Expense overview

A clear overview helps show shared spending and what is currently owed between household members.

03

Shopping lists

Shared shopping lists keep everyday items visible and allow household members to update the same list.

04

Household collaboration

Shared household data keeps everyone working from the same current information.

05

Simple mobile navigation

The interface is structured around a small number of common everyday actions, keeping the app easy to use.

06

Reusable product structure

Shared components and data patterns make it easier to extend the application with additional household features later.

The mobile experience

Anonymized examples of the mobile experience, using example household names, initials and amounts only.

The Miller House

You're owed

€128.40

This month

€212.40

Shared items

6

Recent activity

Groceries · paid by A+€42.80
Utilities · paid by K+€68.00

Shopping list · 3 items left

Household dashboard

ExpensesThis month
Groceries€42.80
Paid by AFood
Utilities€68.00
Paid by KBills
Cleaning supplies€15.40
Paid by AHome

Expenses

Add expense

Amount

€24.00

Category

FoodBillsHome

Paid by

AKSplit equally

Note

Weekly groceries
Save expense

Add expense

Shopping list3 left
Groceries
Detergent
Light bulbs
Coffee
Milk

Shopping list

The Miller House
AMember A
Admin
KMember K
Member
MMember M
Member

Household balance

Settled up

Household

Technical approach

Built as a shared, cross-platform mobile product.

Frontend

Flutter / Dart

Cross-platform

Single mobile codebase for iOS and Android

Data

Firebase-backed shared application data

Synchronization

Household information designed around shared state

Product structure

Reusable components and clear feature separation

Maintainability

Structured codebase ready for future household features

Flutter · Dart · Firebase · Shared state · Cross-platform UI

Outcome

A simpler shared view of everyday household life.

  • Shared expenses organized in one application
  • Shopping lists visible to the household
  • Less need to split information across separate tools
  • Clearer shared overview
  • Consistent mobile experience
  • Product structure that can grow with additional household features

The project demonstrates how a focused mobile product can make small everyday workflows feel simpler when the shared information lives in one place.

Have an app idea that should feel this simple?

A focused mobile product can turn a scattered everyday workflow into one clear experience.