Build a Expense Splitting App
— Split Fair, Stay Friends
Build an expense splitting app for groups with shared bills, balance tracking, and settlement suggestions.
Why Build a Expense Splitting App?
Splitting expenses among friends, roommates, and travel companions is a universal need. Apps like Splitwise have proven that a simple, well-designed expense splitter can reach millions of users.
An expense splitting app needs group management, flexible splitting options (equal, percentage, custom amounts), balance calculations, and settlement tracking.
Fastshot generates a native expense splitting app with group creation, flexible bill splitting, running balances, and settlement suggestions for iOS and Android.
You can build this expense splitting app using our AI app builder — describe what you want and get a working native app in minutes.
Key Features for Your Expense Splitting App
Group expenses, running balances, and smart settlements — make splitting bills painless for roommates, travelers, and friend groups.
Group Management
Create groups for roommates, trips, or events with easy member management.
Flexible Splitting
Split expenses equally, by percentage, by exact amounts, or by shares for maximum flexibility.
Balance Tracking
See who owes whom with real-time balance calculations updated as expenses are added.
Settlement Suggestions
Smart settlement recommendations that minimize the number of payments needed.
Expense History
Browse all shared expenses with details on who paid, who participated, and how it was split.
Activity Feed
Real-time feed showing new expenses, payments, and settlements within each group.
How to Build a Expense Splitting App with Fastshot
Describe Your Splitting Scenario
Tell Fastshot about your expense splitter: roommate bills, travel groups, dinner splits, or shared household expenses. Describe how people add expenses and settle up.
AI Divides and Conquers
Fastshot generates group management, expense logging, flexible split options, balance calculations, and settlement suggestions — all in Supabase for real-time sync.
Split Last Night's Dinner
Preview on your phone. Create a group, add a restaurant bill, split it three ways, and check that the balance calculations are correct before anyone gets awkward.
Save Friendships Everywhere
Cloud builds produce your app. Publish and help friend groups, roommates, and travel companions split expenses without the headache.
Frequently Asked Questions
Can expenses be split unequally?
Yes. Fastshot generates flexible splitting — equal, by percentage, by exact amounts, or by shares — so every splitting scenario is covered, from rent to restaurant tips.
Does the app show who owes whom?
Absolutely. Fastshot generates real-time balance calculations that update as expenses are added, showing net amounts between every pair of group members.
Are there smart settlement suggestions?
Include smart settlements in your description. Fastshot generates algorithms that minimize the number of payments needed to settle all balances in a group.
Can I have multiple groups for different purposes?
Yes. The generated app supports unlimited groups — one for roommates, another for a trip, a third for a shared project — each with independent expense tracking.
Do all group members see updates in real time?
Supabase real-time subscriptions push updates to all group members instantly. When someone adds an expense, everyone sees their updated balance immediately.
Splitting Bills Should Be This Easy
Describe your expense splitting needs. Fastshot generates a native app with group management, flexible splits, and balance tracking — no more awkward IOUs.