Unequal splits
Someone spent more, someone leaves early. Split equally, by shares, by exact amounts or by percentage.
Log the costs of a trip, a shared home or a dinner with friends. In Persian your share of a group bill is called a "dong". TourOn works out each share and shows the fewest card transfers needed to settle up.
Get the official build from Cafe Bazaar, or download the APK straight from TourOn's servers.
TourOn-latest.apkAbout 84.6 MB
Install from Cafe Bazaar
Tap the Cafe Bazaar button, then choose Install on TourOn's page there.
Open TourOn
Installing takes a few seconds. The TourOn icon then appears on your home screen.
No Cafe Bazaar? Tap the APK button and open the downloaded file. Android asks once: in your phone's settings, turn on installing unknown apps for your browser.
The APK is signed with TourOn's release key and downloads over HTTPS.
On iPhone, TourOn is added to your Home Screen as a web app and opens full-screen like any app.
Open it in Safari
Tap the button above. If the page opens in another browser, open the address in Safari.
Tap the Share icon
The icon sits at the bottom of the screen. Tapping it opens the iOS menu.
Choose Add to Home Screen
Confirm. The TourOn icon appears on your Home Screen and opens full-screen, with no browser bar.
The web app uses the same TourOn account.
For group trips, shared homes and dinners with friends.
Someone spent more, someone leaves early. Split equally, by shares, by exact amounts or by percentage.
TourOn nets out tangled debts and proposes the fewest transfers. Sometimes one card transfer replaces several.
After a card transfer you tap "I paid" and the receiver confirms. The money moves between your own accounts, not through TourOn.
Friends join an event with an invite link or a code.
You can log costs on the road or up a mountain. When the connection returns, TourOn syncs by itself.
Amounts in Toman, dates in the Jalali calendar, digits in Persian. TourOn was built for Iranian money and calendars from the start.
In Persian, a "dong" (also written "doong") is each person's share of a group cost.
Create an event
Make an event for the trip, the home or the get-together, and invite your friends with a link.
Log the costs
Enter each cost with its amount, who paid and each person's share.
Settle up
TourOn nets out the debts and tells you who owes whom, using the fewest card transfers.
On Android, from Cafe Bazaar or the APK file on this page. On iPhone, open app.touron.app in Safari and tap Add to Home Screen. Both are free.
Yes. Installing and using the app is free, and it has no ads.
Yes, as a web app. Open app.touron.app in Safari and tap Add to Home Screen, and it opens full-screen like an app. There is no App Store version yet.
We recommend Cafe Bazaar: it is familiar and keeps the app updated automatically. If you do not have Cafe Bazaar, install the direct APK from this page.
Logging costs, notes and payment status work offline, and TourOn syncs by itself when you are back online. Closing an event needs a connection.
Create an event, invite your friends with a link and log each cost with who paid and each person's share. TourOn works out the shares and tells you who owes whom. For a quick one-off split there is also an online calculator.
For each cost you can set shares equally, by shares, by exact amounts or by percentage. For example when someone leaves early or spent more.
TourOn nets out tangled debts and proposes the fewest transfers. Sometimes one card transfer replaces several.
TourOn was built for Iranian money and calendars from the start: amounts in Toman, Jalali dates, install from Cafe Bazaar and offline cost logging. Payments settle with the receiver's confirmation.
"Dong" (also written "doong") is Persian for each person's share of a group cost, and "dongi doongi" is the casual name for working those shares out. TourOn does that calculation for you.
Just your mobile number. TourOn sends a 5-digit SMS code and you sign in with it; there is no password.
The app talks to the server over HTTPS, and your sign-in details are kept in the phone's secure storage. The TourOn app has no ads and no third-party trackers. The website uses Google Analytics for visit statistics only; the privacy page explains what is collected.
The online calculator is for a quick one-off split; it needs no sign-up and keeps data only in your browser. The TourOn app keeps your trips and events, invites friends with a link and settles up with the receiver's confirmation.
Just need a one-off split?
Use the online calculator, no install