OpenKOS

Spec sheet

What it does

OpenKOS manages boarding houses, rental homes, and apartments, including properties, units, tenants, leases, invoices, payments, and maintenance.Read 12 Oct 2026 · openkos.id

Intended users

The product is presented for operators of boarding houses, rental properties, and apartments.Read 12 Oct 2026 · openkos.id

Free plan

YesRead 22 Sep 2026 · github.com

Mobile app coverage

web onlyRead 22 Sep 2026 · github.com

Billing

Invoices are generated from active rental schedules, and confirmed payments are recorded separately from invoice amounts.Read 12 Oct 2026 · openkos.id

Lease management

YesRead 22 Sep 2026 · github.com

Leases and tenants

Tenant contact details, emergency contacts, documents, and lease information are kept with unit records and prior rental history.Read 12 Oct 2026 · openkos.id

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.Read 12 Oct 2026 · openkos.id

Maintenance

Managers or tenants can create repair tickets, prioritize and assign them to staff or technicians, and track their status through completion.Read 12 Oct 2026 · openkos.id

Maintenance management

YesRead 22 Sep 2026 · github.com

Online rent collection

YesRead 22 Sep 2026 · github.com

Payment review

Managers can review tenant-uploaded transfer proofs before confirming a payment, while invoice lists show upcoming, overdue, pending-review, and paid items.Read 12 Oct 2026 · openkos.id

Production limitation

The maker says the project is not recommended for production use yet and breaking changes may occur.Read 12 Oct 2026 · openkos.id

Project status

OpenKOS is at v0.1 Alpha; its documentation says core rental workflows are functional while APIs and extension points may still change.Read 12 Oct 2026 · docs.openkos.id

Property operations

A single installation can manage multiple properties, with unit capacity, rates, facilities, and availability recorded for each property.Read 12 Oct 2026 · openkos.id

Reminders and integration

Rent reminders can be scheduled or sent individually using a configured WhatsApp driver; the documentation also describes integrations as plugin-based.Read 12 Oct 2026 · openkos.id

Reports

The product shows income, outstanding invoices, expenses, and property activity in a financial overview.Read 12 Oct 2026 · openkos.id

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.Read 12 Oct 2026 · openkos.id

Plans and prices

Every OpenKOS plan and price →

Where Specifiction places it

• Property Management Software#126 of 2687.8