Kelola Kos
An app for boarding house (kos) owners: rooms, tenants, monthly bills, electricity and water meters, and cash book — all from your phone. The free plan works offline with no account; paid plans add cloud backup and a tenant portal.
Free — all record-keeping on your phone, no account, up to 10 rooms. Starter — adds cloud backup, the tenant portal, and notifications, up to 10 rooms. PRO — unlimited rooms, multiple properties, and caretaker accounts.
Starter and PRO are subscriptions through Google Play / the App Store. No ads.
Screenshots
About this app
Kelola Kos is an app for boarding house (kos) owners who want their rentals organized without the hassle. Record rooms, tenants, monthly bills, electricity and water meters, and income and expenses — all from your phone. The free plan works right away with no sign-up and keeps working offline.
ROOMS & TENANTS
- Room list with rent price and occupied or vacant status
- Store tenant details: name, WhatsApp number, room, move-in date
- Move tenants between rooms and check them out while keeping their history
- Send a welcome message to new tenants via WhatsApp
AUTOMATIC BILLS
- Rent bills are created automatically on every due date
- Add electricity, water, or other charges to a bill
- Record full or partial payments, with a photo of the transfer receipt
- See who has paid, who hasn't, and who is overdue at a glance
INVOICES & WHATSAPP REMINDERS
- Create a neat PDF invoice for every bill
- Share invoices via WhatsApp or any other app
- Send bill reminders to tenants with a pre-filled message
- Due-date reminders on your phone so no bill slips through
ELECTRICITY & WATER METERS
- Record each room's meter reading every month
- Usage and cost are calculated automatically from last month's reading
- Keep a photo of the meter as proof
CASH BOOK
- Record income and expenses: electricity, water, cleaning, repairs
- Keep photos of expense receipts
- Monthly summary: money in, money out, and balance
SCHEDULES & REPORTS
- Recurring schedules for routine tasks like paying electricity or AC servicing
- Financial, billing, and room occupancy reports
- See how much income is lost to vacant rooms
TENANT PORTAL (STARTER & PRO)
- Tenants sign in with a 6-character code — no app install, no password
- Tenants can view their bills, payment instructions, and your QRIS
- Tenants upload transfer receipts; you just confirm
- Tenants can report damage with photos
CLOUD BACKUP (STARTER & PRO)
- Data is stored safely in the cloud and synced automatically
- Switch phones without losing your data
- Notifications when a new receipt or report comes in
YOUR DATA IS SAFE
- The Free plan keeps your boarding house data on your phone only
- No ads
- We never ask for tenants' ID card photos or bank account numbers
Made for owners of boarding houses, rentals, and small rental homes who have been keeping records in a notebook or WhatsApp chats.