Costie: Split Bills & IOUs

Costie is the fast, simple way to split bills, track shared expenses, and manage IOUs.
See who owes what instantly, record repayments in seconds, and keep every group expense under control.

Perfect for trips, roommates, couples, families, dinners, events, and everyday shared spending. Costie helps you split costs fairly, avoid confusion, and settle up without awkward reminders.

No spreadsheets. No stress. Just clear balances.

WHY PEOPLE CHOOSE COSTIE

See who owes what instantly
Get a clear view of balances, repayments, and shared costs at any time.

Split bills your way
Split equally, by exact amount, by shares, or with partial payments.

Settle up fast
Record a payment in one tap and keep balances accurate.

Built for real-life groups
Great for travel, roommates, rent, groceries, utilities, dinners, road trips, family costs, and events.

Works offline
Add expenses anywhere. Sync later when you're back online.

No account required
Start right away. Create an account only if you want sync across devices.

FEATURES

AI receipt scanning
Scan receipts to add expenses faster.

Recurring items
Track repeating shared expenses like rent, utilities, subscriptions, and regular bills.

Borrowed and lent items
Keep track of money borrowed, money lent, and personal IOUs in one place.

Multiple currencies
Perfect for travel, vacations, and international group trips.

Distance-based travel costs
Split car and ride costs based on distance.

Android widget
See balances faster right from your home screen.

Clear summaries
Understand spending, repayments, and balances without messy spreadsheets.

PERFECT FOR
- splitting restaurant bills
- roommate expenses
- rent and utility sharing
- trip and vacation expenses
- couples sharing costs
- group travel spending
- events and outings
- shared subscriptions
- borrowed and lent money
- tracking IOUs

Make shared money simple.
Download Costie and split bills with confidence.