How to choose an expense-splitting app
They all look the same on the download page. The differences show up on the third weekend, when one person refuses to install anything, when a cost has to be split unevenly, or when you need the history out. Here are the six criteria that genuinely separate them — and, at the end, what WeSplit cannot do.
The short answer
Six criteria are enough to decide. The split modes on offer, whether people can take part without installing anything, how currencies are handled, the business model, what happens to your history, and how you actually settle up.
The most underrated one is the second. Nearly every group has someone who will not install an app. If they cannot take part, they become a name someone else maintains — and the group slides back into the guesswork you were trying to avoid.
1. The split modes
This is what separates usable apps from the rest. "Divide by the number of people" only covers part of real life. You need four:
| Mode | Situation |
|---|---|
| Equal shares | Everyone benefits the same |
| Selected people | The dinner two people skipped |
| By shares | A couple counts double inside a group of friends |
| Exact amounts | An itemised bill, flights bought at different prices |
An app offering only the first mode forces you to cheat: invent a compensating expense, or give up. The four modes in detail, with a worked example.
2. Does everyone have to install it?
Ask it the other way round: what happens to the person in the group who will install nothing? Three possible answers, and they are not equivalent.
- They cannot take part. Someone enters on their behalf, they never see their own balance, and they find out the amount by message at the end.
- They exist as a first name in the group. The accounts are correct, but they stay passive.
- They take part from their browser, with nothing installed and no account. It is the only answer that excludes nobody.
This often decides real adoption: a group settles on its most reluctant member, not its most enthusiastic one.
3. Currencies
Outside your home currency, the question is not "does it support several currencies" but "does it keep the original currency and that day’s rate". Converting at entry, at a rough rate, introduces a 2–5% error per expense that compounds across a whole trip.
Check too that the rate stays editable afterwards: your bank’s rate is not the market rate.
4. The business model
An expense-splitting app sees intimate information: who you travel with, how much you spend, who you owe. "How does this product make money" is therefore not a side question.
| Model | What it implies |
|---|---|
| Paid | The clearest: you are the customer. But you have to convince the whole group to pay |
| Free with ads | Showing ads almost always means third-party trackers, and therefore a consent banner |
| Freemium | Check what sits behind the wall: if it is exact-amount splitting, the free tier is useless |
| Free without ads | Ask yourself what funds the development, and read the privacy policy |
Either way, the concrete test: open the privacy policy and look for whether data goes to third parties for advertising. The answer is there, or it is missing — both are informative.
5. What happens to your history
Two questions, both checkable before you start: can you export your expenses in an open format, and can you delete your account from inside the app?
A CSV export is not a luxury. It is what lets you leave, do the maths another way, or simply keep a record once the group is settled.
6. Settling up
An app that shows balances without helping you clear them stops halfway. Two things to look at: debt netting — does it suggest the fewest possible transfers, or a list of criss-crossing repayments? — and which payment methods it can prepare.
Watch for one trap: some apps bundle their own payment service, with fees. A transfer between friends should stay free.
Looking for an alternative to a well-known app?
Splitwise, Tricount, Splid: these names come up every time, and each has its supporters. Rather than telling you what they are worth — their features and pricing change, and we are not neutral — take the six criteria above and test them yourself on a real group. Half an hour is enough.
The only genuinely useful advice: test with a real weekend, not with invented expenses. The differences only show up on the awkward cases, and awkward cases cannot be invented.
What WeSplit does
All four split modes. Taking part from a browser, with nothing installed and no account required. Currencies kept with their rate. Debt netting to cut the number of transfers. CSV export over the period you choose. Account deletion from the settings. Free, no ads, no third-party advertising trackers.
What WeSplit does not do
Better said by us than discovered at the wrong moment.
- No receipt scanning. You photograph the receipt to keep it, but the amount is typed by hand.
- No overall balance between two people across groups. If you share a trip and a flat with the same person, those are two separate sets of accounts.
- No comments or reactions on an expense. It is an accounts tool, not a chat thread.
- Partial offline support. You can add an expense with no network and it syncs later, but browsing a whole group offline is not guaranteed.
- No notifications on the web. They work on iPhone and Android, not in a browser.
- No bank connection. Nothing is imported from your statements.
These are on our roadmap, and some will stay there for a long time. If one of them is decisive for you, another app will suit you better — and that is a more useful answer than a sales pitch.
In short
- Insist on all four split modes: without them you will be cheating by the second weekend.
- Check what happens to the person who installs nothing. They decide whether the group adopts it.
- On a trip, the currency must be kept with its rate, not converted at entry.
- Read the privacy policy before you create the first group, not after.
- Test on a real weekend: awkward cases cannot be invented.