See what each vehicle really earned, what drivers still owe, what you spent and what profit is left — on your phone, in Bengali or English, without internet.
For owners of buses, private cars, CNGs, auto-rickshaws, trucks, pickups and other vehicles, and for small transport businesses in Bangladesh.
Coming soon Not yet published in any store. The download link will be added here.
Record and check accounts anywhere. No internet is needed for daily use.
No sign-up or login. Records stay in the app’s storage on your phone.
Rent you earned and money you actually received are never mixed up.
Bengali by default, with Bengali digits. Switch to English any time.
Inside the app
Real screenshots from the current app in normal use, filled with fictional example records.
One owner with one CNG or a small fleet — each vehicle keeps its own book, and you can see them all together.
How it works
Six steps cover most days. Each step links to a detailed guide.
Features
Planned features are listed separately in the guide, under “Not available in this version”.
Vehicles, owners and drivers
Keep each vehicle’s details and photos, its owners and their shares, and a full history of which driver drove it on which shift.
Income, money received and dues
Record income for a day, week, month or any dates. Record money when it actually reaches you and link it to the income it pays — partial payments and advances included.
Expenses and payments
Fuel, repairs, servicing, driver salary, documents and other costs. The expense date decides the month’s profit; the payment date decides cash.
Owner — counts in your expenses and profit.
Driver — kept for reference only; never lowers rent.
Owner — paid in full, partly, or not yet.
Driver, from own money — pay the driver back, or adjust against rent.
Dashboard and reports
The Home screen shows a month at a glance. Reports cover any day, month or date range, for one vehicle or all, with an income & expense chart.
Documents and reminders
Registration, fitness, tax token, route permit, insurance, driving licence and other papers — with dates and photos of each page.
Accounting, explained
Bahon Boi never adds a driver’s payment as new income, and never works out cash from profit. Here is one week of one vehicle, with example figures.
Income is still ৳ 7,000 — the payment only lowers the due.
| Repair paid | Repair not paid yet | |
|---|---|---|
| Money received | ৳ 5,000 | ৳ 5,000 |
| Money paid | ৳ 1,500 | ৳ 0 |
| Net cash movement | ৳ 3,500 | ৳ 5,000 |
| Unpaid expenses | ৳ 0 | ৳ 1,500 |
| Profit | ৳ 5,500 | ৳ 5,500 |
Profit is the same in both cases; only cash changes.
Rent ৳ 7,000. The driver paid a ৳ 1,000 repair from their own money and hands over ৳ 6,000 cash. You record “Adjust against rent” for ৳ 1,000.
Rent ৳ 1,000, the driver paid ৳ 700, and you later agree to waive ৳ 300 with “Reduce / waive rent”.
Backup and restore
Records live on your phone. Backups go to a folder you choose on the phone, so copying that folder somewhere else is what protects you if the phone is lost.
Offline use and privacy
Everything you record works without internet. There is no account, no advertising and no analytics or crash-reporting service in the current version, and your records are not sent to the developer. When the phone is online, the app only downloads a small public file to check for a newer version.
Being offline does not make a phone risk-free. Records — including drivers’ ID details — are only as safe as your phone and your backup files.
Read the Privacy PolicyFAQ
Bahon Boi has not been published in any app store yet. When it is, the download link will appear on this page.
No. Income is recorded once, as its own entry. When the driver pays, you record money received and link it to that income, so the due goes down. Money received never adds income, and you cannot apply more than an entry’s due — extra money must be kept as an advance.
No. For daily rent you enter a daily rate and the amount fills in as rate × days. For trip-based income you enter the actual amount earned and, optionally, the number of trips. Fixed contracts and other income are separate types too.
An expense counts in profit on the day the work happened; the payment counts in cash on the day you paid. If you enter something with an old date, reports recalculate.
No account is needed. Records are kept on your phone in the app’s own storage, and the app works without internet. Records are not sent to the developer.
Only what you backed up and copied off the phone can be restored. Set up Backup & Restore on day one, copy the “BahonBoi Backups” folder to a computer or USB drive regularly, and keep any recovery key somewhere else. Without a backup copy, records on a lost phone cannot be recovered.
Not yet. Expired and expiring documents appear inside the app — on the Home screen’s bell and alert strip and on the vehicle screen.
Yes, as records: each owner’s contribution and share are kept. Owners do not get separate logins, and the app does not split profit between them.
No. Bahon Boi is a mobile app. This website only explains it; you cannot keep accounts here.
Questions or suggestions? Email hello@munna.dev
Bahon Boi