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OpenKOS

Plans and prices

Free

Free

No software license fee · Server, storage, provider credentials, and operating work are the operator’s responsibility

Every plan, in full

On the record

Billing
Invoices are generated from active rental schedules, and confirmed payments are recorded separately from invoice amounts.openkos.id · read 12 Oct 2026
Intended users
The product is presented for operators of boarding houses, rental properties, and apartments.openkos.id · read 12 Oct 2026
Lease management
Yesgithub.com · read 22 Sep 2026
Leases and tenants
Tenant contact details, emergency contacts, documents, and lease information are kept with unit records and prior rental history.openkos.id · read 12 Oct 2026
License and hosting
OpenKOS is open source under Apache 2.0 and can be run on a server managed by the operator, who chooses where property data is stored.openkos.id · read 12 Oct 2026
Maintenance
Managers or tenants can create repair tickets, prioritize and assign them to staff or technicians, and track their status through completion.openkos.id · read 12 Oct 2026
Maintenance management
Yesgithub.com · read 22 Sep 2026
Mobile app coverage
web onlygithub.com · read 22 Sep 2026
Online rent collection
Yesgithub.com · read 22 Sep 2026
Payment review
Managers can review tenant-uploaded transfer proofs before confirming a payment, while invoice lists show upcoming, overdue, pending-review, and paid items.openkos.id · read 12 Oct 2026
Production limitation
The maker says the project is not recommended for production use yet and breaking changes may occur.openkos.id · read 12 Oct 2026
Project status
OpenKOS is at v0.1 Alpha; its documentation says core rental workflows are functional while APIs and extension points may still change.docs.openkos.id · read 12 Oct 2026
Property operations
A single installation can manage multiple properties, with unit capacity, rates, facilities, and availability recorded for each property.openkos.id · read 12 Oct 2026
Reminders and integration
Rent reminders can be scheduled or sent individually using a configured WhatsApp driver; the documentation also describes integrations as plugin-based.openkos.id · read 12 Oct 2026
Reports
The product shows income, outstanding invoices, expenses, and property activity in a financial overview.openkos.id · read 12 Oct 2026
Tenant portal
Tenants can view lease and invoice details and submit payment proof through a portal whose records are visible to operators in the same system.openkos.id · read 12 Oct 2026
What it does
OpenKOS manages boarding houses, rental homes, and apartments, including properties, units, tenants, leases, invoices, payments, and maintenance.openkos.id · read 12 Oct 2026

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