Every shared household re-invents the same broken system: someone pays for groceries, someone else covers the electric bill, and reconciling who actually owes whom turns into a group-chat argument nobody enjoys. The popular splitting apps work, but they're built for one-off trip expenses and bury the recurring-household use case behind ads and premium tiers.
Describe your household — how many people, how bills usually get split — and WyberAi builds the ledger around it: a shared expense log where anyone can add a charge and how it splits, a running balance per roommate so "who owes who" is a glance, not a calculation, and a settle-up flow for when someone finally pays their share back.
What your roommate expense splitter needs — and gets
✓
Shared expense log
Anyone in the household logs a charge — groceries, utilities, rent — with who paid and how it splits.
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Flexible split rules
Even split, custom percentages, or "just these two people" — the split is set per expense, not forced to one rule.
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Running balance per person
A live view of who owes whom and how much, updated the instant a new expense lands.
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Settle-up tracking
Mark a debt as settled when it's paid back in cash or transfer, clearing the balance without deleting the history.
From idea to live app in three steps
01
Describe it
Paste the starter prompt below (or write your own) — screens, data, and rules in plain English.
02
AI engineers it
WyberAi generates the full app — UI, database schema, auth — self-heals build errors, and runs a live security scan.
03
Publish it
Preview instantly, refine in chat, then publish to a live URL (or your own domain) when it's right.
Starter prompt — engineered for this build
The exact prompt to build your roommate expense splitter
Build a roommate expense splitter mobile app for a 3-person household: an Add Expense screen where anyone logs a charge with amount, description, who paid, and how it splits (even, custom percentages, or specific people); a Balances screen showing a running total of who owes whom across the household; and a Settle Up screen to mark a debt as paid, which clears the balance while keeping the expense history.
Questions people ask about building a roommate expense splitter
Can it handle uneven splits, like one person's guest?+
Yes — set a custom split per expense, so a dinner where only two of three roommates ate splits between just those two.
Does it work for more than roommates — trips too?+
The same structure fits any shared-expense group; describe your use case (a trip, a shared subscription) and the split logic follows.
Can someone leave the household and settle their final balance?+
Yes — a final settle-up clears their balance to zero, and their historical expenses stay in the log for reference.
Is it free to use with my roommates?+
Yes — no ads, no per-transaction fee. Building uses free monthly credits, and the app runs as yours from then on.
Start building for free — 50 credits/month
No credit card required. Your roommate expense splitter live in minutes.