The trip expense splitter
that handles every currency

One person books the Airbnb, another pays for dinner, someone covers the taxi in a currency nobody can convert in their head. Log it all in a trip group and Cost Share works out who owes what when you get home.

Built for group travel

Any currency, live rates

Add each expense in the currency you actually paid in. Cost Share converts with live exchange rates so balances stay right.

Scan receipts on the go

Snap the restaurant bill and AI itemizes it. Assign dishes to people or split the whole thing equally.

Only the people who were there

Not everyone did the boat tour. Split each expense between just the people it applies to.

One group per trip

Keep each trip separate, with its own members, its own default currency, and its own balances.

Settle up after the trip

When you're home, check the balances and record payments in one tap.

No ads, no limits

Add as many expenses as the trip needs. Cost Share's free plan has no ads and no daily expense cap.

Split a trip in four steps

  1. 1

    Create a trip group

    Name it, choose the trip's main currency, and invite everyone who's going.

  2. 2

    Log expenses as you go

    Record who paid and who it was for. Use the local currency, Cost Share converts it.

  3. 3

    Scan the big receipts

    Restaurant bills and supermarket runs are faster to scan than type.

  4. 4

    Settle up at the end

    Everyone sees their final balance, so paying each other back takes minutes.

Tips for splitting travel expenses

Agree on the rules before you leave. Will you split everything equally, or only split what each person took part in? Equal splitting is simpler; itemized splitting is fairer when budgets differ. Either works as long as everyone knows which one you're using.

Log expenses the same day. Memory fades fast on holiday, and receipts get lost. Adding a bill while you're still at the table takes ten seconds and saves a long reconstruction session on the flight home.

Record expenses in the currency you paid in. Converting by hand introduces rounding errors and arguments about which rate to use. Let the app apply live exchange rates consistently.

Settle once, at the end. Paying each other back after every meal creates dozens of tiny transfers. With a running balance, each person makes one payment when the trip is over.

Frequently asked questions

What's the best app to split travel expenses with friends?

Cost Share is a free trip expense splitter for iOS and Android with no ads. It supports multiple currencies with live exchange rates, AI receipt scanning, and splitting each expense between just the people involved.

Can I add expenses in different currencies?

Yes. Add each expense in the currency you paid in, and Cost Share converts it with live exchange rates. Each group can also have its own default currency.

Does everyone on the trip need to download the app?

Everyone who wants to see their balance or add expenses needs the free app. It's available on both iOS and Android.

Is there a limit on how many expenses I can add?

No. Cost Share's free plan lets you add unlimited expenses, groups and friends.