Bill
Dues are billed to residents, with a clear amount and due date.
Built in Lagos · Operating across 4 states
Protect your
revenue.
Protect your space.
Limestone runs your estate or school on one record: who belongs, what they owe, what they may use. Dues and fees get paid because the gate and the meter wait for payment. The gate verifies everyone itself, even with no internet. Every event has a name, a time, and an owner.
Simple setup for your estate or school. No commitment to start.
Internet status
Gate active
Local access active
Internet unavailable
14:32Visitor verified locally · Adeyemi D.OPEN
14:30Passage saved on siteQUEUED
14:28Resident code acceptedOPEN
97%
Average monthly collection rate
₦500M
Collected
2m 18s
Average panic response
9,400+
StoneCircle Users
100+
Protected Spaces
● LIVE Gate 1 · Visitor pre-approved · Avocado Estate
DUES ₦2.4M collected · 78% monthly rate
RESOLVED Panic response · 2m 18s
ACCESS Offline verification reconciled · 16 events
● LIVE Gate 1 · Visitor pre-approved · Avocado Estate
DUES ₦2.4M collected · 78% monthly rate
RESOLVED Panic response · 2m 18s
ACCESS Offline verification reconciled · 16 events
Trusted by Nigerian estates & schools
How the lock works
Set the rule once.
Let Limestone handle the rest.
Stop chasing outstanding dues manually. Limestone helps estates set payment rules, send reminders and apply restrictions when payments are overdue. Once a resident pays, the restriction is lifted automatically, with every action recorded.
Notify
Reminders and notices are sent, with a record of who has read them.
Release
When outstanding dues are paid, restricted services become available again.
See the Lock in action
Rule applied automaticallyIllustrative estate payment timeline
- Reminder sent
Resident receives a reminder about outstanding dues.
- Notice read
The notice is acknowledged and recorded.
- Dues paid
Payment is confirmed in the resident's account.
- Electricity top-up restored
The payment restriction is lifted automatically.
The estate decides the rules and dates. Limestone applies them consistently and keeps every notice, payment and release on record.
FOR
Built for the people who carry the space.
If keeping a protected space running is your responsibility, Limestone was built for you. Residents, parents and security teams get the simple end of it.
Chairmen & EXCOs
See collections, outstanding dues and estate records before the next AGM.
Facility Managers
One record for dues, issues and gate activity. Nothing important lives only on someone's phone.
Developers
Hand over an estate with its records and rules already set. A login, not an archive.
School Owners & Heads
Track fees by pupil and keep student access tied to a clear record.
Limestone offline access
Your internet can go down.
Your gate should not.
Most access systems ask the cloud for permission at the exact moment someone is waiting at the barrier. Limestone puts that decision at the gate, where it belongs. The right people still get in, guards keep working, and the estate stays calm.
Internet unavailable
Access active
- 01Create
A resident creates a secure access code on their phone without mobile data.
- 02Verify
Gate Terminal or Terminal Core checks it on site without waiting for a server.
- 03Reconcile
Each passage keeps its real time and syncs automatically when connectivity returns.
No hotspot. No gate queue. No rewriting a paper log later.
One system.
Three connected layers.
Residents use one app. Your management team sees one operational record. The hardware at the perimeter reports to both. Every event has a name, a time, and an owner.
01 · RESIDENT LAYER
StoneCircle
the app people actually use
Pay dues and buy electricity from one wallet. Create visitor access codes even without mobile data, raise a panic alert, and follow cases from one simple app.
- Dues & payments
- Electricity top-ups
- Visitor pre-approval
- One-tap panic with live location
- Cases with visible progress
02 · OPERATIONS LAYER
StoneCircle Admin
the estate's system of record
Every payment, gate event, case and alert flows into one role-aware dashboard. Set the rules once, see what waits for payment, and keep every notice, release and action on record.
- Dues & payments
- Resident records
- Issues & follow-up
- Activity records
03 · SECURITY LAYER
StoneCircle Terminal
the hardware at your perimeter
Gate Terminal and Terminal Core connect access decisions to the same operating record. For barriers, CCTV, biometrics and turnstiles, Limestone specifies and integrates certified partner hardware.
- Gate Terminal
- Terminal Core
- Offline access decisions
- Partner hardware integration
Built for two very different
communities. One platform.
Month-end in a Lekki estate means dues, gate pressure, and a chairman’s phone that won’t stop. Tuesday at 2 p.m. in a primary school means 218 children meeting the right adult at the right gate. Same platform. Shaped to each rhythm.
01 · Residential estates
Dues collected.
Access under control.
Tie dues, electricity and gate access to one ledger, while managing resident communication and everyday estate operations without making the chairman or facility manager the bottleneck.
02 · Nursery, primary & secondary schools
Fees paid on time.
Children released to the right adult.
Track school fees, send notices to parents, and manage authorised pickup from one connected record.
03 · On-site implementation
Software that
reaches the gate.
Limestone connects the software to the physical gate. We specify and integrate the right access setup, with certified partners supplying and servicing partner hardware.
Why Limestone exists
We started Limestone because we wanted our parents to live without fear, and our children to grow up in communities that actually worked.
Too much important work, including security response, dues collection, visitor access, complaints and community communication, is still held together by WhatsApp groups, paper logs and personal favours. When something breaks, it breaks at the worst possible moment.
People deserve tools that match the seriousness of what they are protecting.
IA
Ifeanyi Aneke
Founder & CEO · Limestone
Your current setup
vs. Limestone.
This is not a comparison with competitors. It compares Limestone with the WhatsApp group, the paper log at the gate and the calls to the chairman that hold things together today.
Today, held together by hand
- Visitor names shouted over the intercom, written in a notebook at the gate.
- Dues chased one chat at a time. Nobody can prove who has paid what.
- Panic means calling whoever picks up first.
- Issues disappear in an 847-member WhatsApp group.
- When the chairman hands over, the history leaves with their phone.
On Limestone, a system of record
- Pre-approved codes verified at the gate in seconds, even offline.
- Once dues are paid, the meter is ready for top-up. 97% average monthly collection rate.
- One-tap panic with live location. 2m 18s average response.
- Cases stay assigned, tracked and timed until they're resolved.
- Handover is a login, not an archaeology project.
The useful questions
Before you
bring us in.
For everything else, call us. A real person in Lagos will answer.
Limestone is the operating system for protected spaces. It helps estates and schools manage payments, access, operations and security from one connected system.
For estates, Limestone helps improve collections by connecting dues to the rules that manage services such as electricity vending and access. It also keeps critical gate access working when the internet is unavailable.
Limestone includes StoneCircle for residents, StoneCircle Admin for management and operations, and StoneCircle Terminal for access and security.
Limestone is built for residential estates and gated communities, property developers, property and facility managers, and nursery, primary and secondary schools.
Residents, parents and security teams use Limestone for everyday activities such as payments, communication and access, while estate and school managers use it to oversee collections, operations and security.
Yes. Limestone works for estates and schools of different sizes. You can start with what you need today and expand as your residents, students or operations grow.
Yes. We support estates and schools with guided onboarding and setup, templates for importing existing records and configuration, and ongoing customer support via email, phone and in-app channels.
The estate sets the payment rule in advance. Residents receive a reminder and a notice before any restriction applies. If payment remains outstanding, services covered by the estate’s rule, such as electricity top-up, may be temporarily restricted. Once payment is made, access to the service is restored automatically.
Show us your community.
We’ll show you the number.
A private demo is a 30-minute working conversation, using a Limestone environment configured around a community like yours. No generic slide deck.
Request a private demo →
Talk to us first
30 minutes · No slides · We respond within one business day