Dormitory management, made simple
Rooms, tenants, contracts, billing, maintenance, and parcel alerts — connected to the LINE app your tenants already use. No extra app for them to install.
- No credit card required to sign up
- Set up in a single day

Built on the LINE app your tenants already use
No separate app for tenants to install, no new system for anyone to learn.
Check bills on LINE, no login
Tenants enter their room number and ID card number through the dormitory's LINE menu and see what they owe instantly.
Sign leases online
Send a link, the tenant signs on their own phone — witness support included, no office visit needed.
Notify tenants of parcels in one click
Staff log an arriving parcel and the tenant gets a LINE message immediately — no more chasing phone calls.
Features owners use every day
Pick a plan that fits your dormitory
No plans configured yet — pricing will show up here once the platform operator sets up plans in the backoffice.
Space reserved for customer reviews
We're gathering feedback from real Lavaaa customers — this section will update soon.
What to know before you sign up
Do I need a LINE Official Account first?
No — start managing rooms, tenants, and bills right away, then connect a LINE OA later from Settings whenever you're ready.
Do tenants need to install an app?
No. Tenants use the LINE app they already have to check bills, get parcel alerts, and see announcements.
Can I change plans later?
Yes, any time from Settings — the price difference is calculated automatically.
How safe is tenant data?
Data is isolated per owner account, sensitive fields are encrypted, and staff access is controlled per feature.

Ready to make your dormitory easier to run?
Start free, no credit card required, set up in a single day.