About SplitWithUs
SplitWithUs started with settling up after a group trip. The same rules now split a restaurant or bar bill, a trip with a guest of honor, the last bills when a roommate moves out, and the fuel on a road trip. Each is money a group shares: one person enters what was spent, the calculator works out who owes whom, and everyone can see why their number is what it is. It is deliberately small: five calculators, no accounts.
- Trip expenses: receipts in several currencies, each converted at the rate of the day it was paid. The rest of the group gets a link they can open without signing up.
- Restaurant and bar bills: split by what each person had, with tax and tip, across one place or a whole night.
- Trips with a guest of honor: the group treats someone to meals and activities, and each treat is split by the people who were there.
- Moving out: when a roommate moves out, the final bills by days lived, the deposit and the shared stuff, settled in one short list of transfers.
- Road trip gas: fuel split by who was in the car on each leg, from receipts or from distance and mpg, with tolls and parking.
Why it exists
After most trips, somebody ends up with a phone full of card alerts in three currencies, a few paper receipts and a group chat asking "so how much do I owe?". The usual answers are a spreadsheet that one person understands, or an app that everyone has to install and join first. Neither explains why a number is what it is, which is exactly the question that starts arguments.
SplitWithUs is built around that question. Every receipt is converted at the rate of the day it was paid, every cent of rounding is placed by a published rule, and anyone in the group can open the working behind their own number. The rules are written out on the methodology page.
What it does, and what it does not
- It works in the browser. There is no account, and nothing you type leaves your device unless you create a share link.
- The trip calculator handles receipts in 154 currencies, splits them between everyone or chosen groups (a room, a car, the people who ordered drinks), and reduces the result to a short list of transfers.
- It does not move money, connect to a bank, or give financial advice. It tells you who should send what.
Who runs it
SplitWithUs is built and run by one independent developer based in South Korea. It is free to use and paid for by the advertising on the site; there is no premium tier and no data for sale. The same developer also makes AdPrepare, a set of guides and checks for small websites preparing for ad review. SplitWithUs is written to the same rules it recommends: every page says what it does, where its numbers come from, and where its limits are.
Get in touch
Questions, a number you cannot reproduce, or a shared link you want deleted early: see the contact page.