Cost Splitter App for
Trips, Roommates & Shared Expenses
Track trip expenses, roommate bills, and shared household costs in one place. Split balances, log repayments, and keep everyone aligned without spreadsheets or awkward reminders.
No app download. Just create a group, share the link, and start logging expenses.
Start splitting costsBuilt for real shared spending
Use it when money gets shared and memory gets fuzzy.
Trip expenses
Track dinners, taxis, tickets, and group bookings without a messy note on your phone.
Roommate bills
Keep rent extras, groceries, and household purchases visible so nobody has to guess later.
Shared gifts
Organize birthday collections, team gifts, or event contributions without chasing people one by one.
Casual team spend
Great for lunch runs, coffee rounds, or recurring office spending that still needs clean balances.
How it works
1. Create a group
Name it something clear like “Weekend trip”, “Roommate bills”, or “Household”. Then share the invite link.
2. Add expenses
Log who paid, how much it cost, and who should split it. LunchLink calculates the balances for you.
3. Settle up
See the minimum repayments needed, then mark them settled when money changes hands.
Why people switch from spreadsheets
Because shared expenses are easy to create and annoying to reconstruct later.
"I’ll send it later"
Once a trip or household week gets busy, people forget what they owe and the chat thread becomes the ledger.
The spreadsheet nobody updates
A shared sheet sounds fine until one person stops maintaining it and everyone loses trust in the numbers.
Fast logging, clear balances
Add an expense in seconds, see the current balances immediately, and keep the whole group on the same page.
Popular guides
If you're comparing tools or solving a specific shared-expense problem, start here.
Split trip expenses without a spreadsheet
Keep the trip fun, not the money follow-up.
RoommatesRoommate expense tracker for shared bills
Keep shared bills visible before small costs turn into tension.
GuideHow to split trip expenses without a spreadsheet
A practical guide for friends who want less admin and fewer awkward reminders.
Cost Splitter FAQ
Answers for common search questions around splitting bills and shared expenses.
What is a cost splitter app?
A cost splitter app helps you track shared expenses, see who owes whom, and record repayments without relying on memory or spreadsheets.
Can I use this for trips and roommate bills?
Yes. LunchLink Cost Splitter works well for trip expenses, roommate bills, household purchases, shared gifts, and casual team spending.
Do people need to download an app?
No. Everything works in the browser. Create the group, share the link, and let people join without adding more friction.
How do repayments work?
LunchLink shows the balances and the minimum transfers needed. When someone pays you back, mark it settled so the group stays accurate.
Ready to stop chasing shared expenses?
Start a cost splitting group for your next trip, roommate setup, or shared purchase and keep the balances clear from day one.