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  • Kos Manager: Rental App screenshot 1
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About Kos Manager: Rental App

Kos Manager keeps the books for a boarding house. Rooms, tenants, rent, deposits, contracts, expenses. One app, on your phone, instead of a notebook and three WhatsApp threads. WHAT IT DOES Rooms and tenants See every room at a glance: who is in it, what they owe, when they came in. Up to four people per room, each with their own details, one of them marked as the one who pays. Rent that keeps its own diary Set the day rent falls due and the app tracks it. Overdue rooms turn red. Reminders go out over WhatsApp or LINE, in the tenant's language, with the amount and the bank details already filled in. You approve the message before it sends. Money you can check Every payment says which account it landed in — cash, or any of your banks. Each account carries a running balance. The balance sheet shows what you own and what you owe, and reconciles the accounts against the books, so "the app says this, my bank says that" is a question with an answer. Trace any figure A statement of every payment, expense and transfer: date and time, what it was, amount, debit or credit, which account. Filter by week, month, year or your own dates. Search by tenant, room or note. Export to PDF or a spreadsheet your accountant can work in. Let tenants fill in their own details Send a link. The tenant types their name, phone, ID number and emergency contact, and photographs their ID, before they move in. You read what came back and accept it — check-in opens already filled in, ID photo included. If something is wrong, send it back with a note. (Professional plan.) Contracts Write your own template once, or use the ones included. Send it for signing and the tenant signs on their phone. The signed PDF is stored against the room. Reports Income, expenses, profit, occupancy. By month, by year, by house. Export to PDF or Excel. Also in the app Deposits tracked separately from rent, because a deposit is money you hold, not money you earned. Reserve a room for someone arriving later. Maintenance jobs with photos and costs. Expenses per house or per room. Works in English, Indonesian and Chinese. Rupiah, or your own currency. FREE AND PAID Free covers one house and three rooms. Starter and Professional raise the limits and unlock Excel export, reminders, digital contracts, and self check-in. No advertising, ever. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

What’s new

Version 1.10.3 · Updated October 19, 2026

• Switch a tenant between monthly and weekly. Open the room and tap Switch to weekly (or Switch to monthly) next to the price. The change starts from the next bill; bills already paid stay as they are. • Upcoming follows your reminder setting. The home screen, room list and alerts now use the days you chose in Profile > Upcoming payment reminder, so they always match the morning notification. • Pay rent now from the balance. A tenant who paid ahead can have their next months or weeks paid straight away, and the balance shows how far it reaches. • Backdate maintenance notes. Pick the real date for work done before you used the app. Recording it as an expense carries that date and the room. • Fewer false "due soon": a room is no longer flagged when the tenant's balance already covers the next rent, or when the tenant leaves before the next bill starts.

App privacy

The developer, Jehoshua Hanky Pratama, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Usage Data: Product Interaction, Advertising Data, Other Usage Data

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Usage Data: Product Interaction, Advertising Data, Other Usage Data
  • Financial Info: Payment Info
  • Contact Info: Email Address, Name, Phone Number
  • User Content: Emails or Text Messages, Photos or Videos
  • Identifiers: User ID
  • Diagnostics: Crash Data

Used for: Third-Party Advertising, Developer’s Advertising or Marketing, App Functionality

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