How to make a trip expense splitter your friends will actually use
~5 minutes · no code · free to start
Somebody always fronts the hotel. Somebody always 'forgets'. The apps that fix this want everyone to install something and make an account — which is exactly why nobody does it.
Yours needs none of that: you track, it calculates the minimal set of payback transfers, and one button copies a plain-text settlement plan into the group chat.
What you'll end up with
- ✓Add people, then expenses: who paid, how much, who shares it
- ✓Live balances per person
- ✓The minimal who-pays-whom settlement plan
- ✓A copy button that drops the plan straight into your group chat
The five steps (same for every app)
- 1
Describe it
Type what you want in plain English — like you'd explain it to a friend. No technical words needed. Every guide below gives you a ready-made description you can use as-is or edit.
- 2
Check the plan
Kyntra replies with a short plan in plain English: what it understood and what it's about to build. If it got something wrong, just say so. Happy? Hit Approve. (You can switch on Auto later to skip this step.)
- 3
Watch it build
About a minute later your app appears in the preview panel — a real, working app, not a mockup. Click around in it right away.
- 4
Ask for changes
This is where Kyntra is different from hiring anyone: changes are just sentences. "Make it blue." "Add a delete button." "That chart is confusing, make it simpler." Each change takes about a minute, and every version gets a quality grade in the header — Kyntra checks its own work for the mistakes AI builders usually make.
- 5
Publish it
One click on Publish gives your app a real web address you can send to anyone or open on your phone. Change something later? Publish again — same address, new version.
Your ready-made description
This is the exact text the button below pastes for you — read it, edit anything, or use it as-is.
An expense splitter for a group trip. I add people, then expenses (who paid, amount, what for, which people share it). The app computes each person's balance and the minimal set of who-pays-whom transfers to settle up. Running total and per-person summary cards, everything in localStorage, and a 'copy settlement plan' button that puts a plain-text summary on the clipboard.
Make it yours — things to say next
After the first build, changes are just sentences in the chat. For example:
You say: “Add currencies — we paid in euros and korunas on this trip”
→ Multi-currency with one rate field
You say: “Add categories (food, transport, fun) with a little pie chart”
→ Where the money actually went
You say: “Make the settlement message funnier”
→ 'Tom owes Anna $23. Tom, we saw the receipt.'
You say: “Publish it”
→ Next trip, you just send the link
Common questions
Do my friends need accounts?
No — one person tracks (you), and the copy-paste settlement plan goes to the group chat. Nobody installs anything.
Do I need to know how to code?
No. You describe, Kyntra builds. You never have to read or touch code — though it's all there if you're curious.
Is it really free?
Yes — free to start, no card. The free plan includes 5 apps and 25 builds a day, which is plenty to build and polish something real.
How do I know the app is any good?
Every version is audited by Kyntra's 17-check quality engine — the same kind of review a senior engineer would do — and stamped with a letter grade you can see in the workspace header.
Five minutes from now, this exists.
Free to start · no card · live app in about a minute