Keystone Devs SG
Back to home What you get

A whole business system, not a website.

A System Build covers the staff app your team uses all day, the booking page your customers see, the reminders that run on their own and the reports you check at night. Below is everything that comes in the box, for your kind of business.

Try every module in the live demo
3apps: staff, customer and owner
8–10modules, set up for your workflow
25+screens designed and built
30 daysof free fixes after launch
By business

Built around how you work.

Pick your business to see the modules, who uses them and what changes. Every list is a starting point we trim or extend in the first workshop.

Appointments in a diary and a WhatsApp groupOne live calendar, online booking, no double bookings
Recalls depend on someone rememberingAnnual and follow-up recalls go out by themselves
Patient history split between cards and ExcelFull history, Rx and notes on one screen

Online booking page

  • Service, practitioner and time
  • Deposits by PayNow or card
  • Reschedule from a link

Front desk calendar

  • Day, week and room views
  • Walk-ins and check-in
  • Drag to move an appointment

Patient records

  • Visit history and notes
  • Prescriptions or treatment plans
  • Attachments and consent forms

Recall engine

  • Rules per service, e.g. 12 months
  • WhatsApp first, SMS fallback
  • Book straight from the message

Reminders

  • Confirmation on booking
  • Day-before nudge
  • No-show follow-up

Billing and PayNow

  • Invoices and receipts
  • Packages and session credits
  • Export to Xero or Excel

Stock and reorders

  • Frames, lenses or herbs
  • Low-stock alerts
  • Supplier order list

Owner dashboard

  • Revenue by service and staff
  • Recall and no-show rates
  • Multi-outlet view

Staff and roles

  • Logins for each staff member
  • Who can see what
  • Activity log
Your staff get

One app for the whole day, with logins, roles and the screens they actually use. It works on the front desk PC, a tablet or a phone.

Your customers get

A booking or enrolment page with your name on it, plus WhatsApp messages they read, and payment by PayNow in two taps.

You get

A dashboard of the numbers that matter, a system that runs without you watching it, and the code and data in your name.

Every project

Included, whatever you build.

The parts agencies often charge extra for, or skip. They are in every System Build at the fixed price.

Before the build
  • Workflow workshopWe sit with your team and map how a day really runs.
  • One-page scopeWhat is in, what is out, and the fixed price.
  • Clickable designTry every main screen before any code is written.
During the build
  • Friday demosA working version to try, every week.
  • Shared progress boardSee what is done, in progress and next.
  • Data move from ExcelCustomers, history and stock imported and checked.
At launch
  • Staff trainingA live session plus short video guides for new hires.
  • Setup in your nameDomain, hosting, WhatsApp and payments on your accounts.
  • Daily backupsAutomatic, with a tested restore.
After launch
  • 30 days of free fixesAnything that does not work as agreed is fixed at no cost.
  • Full handoverSource code, database and a written guide.
  • Privacy built inLogins, roles and access logs designed with PDPA in mind.
How a build runs

Eight weeks, no black box.

A typical business system from first workshop to staff training. Every week has a clear output, and you see working software every Friday.

Wk 1

Discovery

  • Workflow workshop at your shop
  • Pain points ranked

You getScope and fixed quote

Wk 2

Design

  • Screens for every role
  • Feedback round

You getClickable prototype

Wk 3–6 · four sprints

Build

  • Core records and logins
  • Bookings and calendar
  • Stock, payments, alerts
  • Reports dashboard
  • Demo every Friday
  • Change requests logged

You getWorking system on a private link, updated weekly

Wk 7

Test and migrate

  • Your staff try it
  • Old data imported

You getYour data, live

Wk 8

Launch

  • Go live
  • Staff training

You getHandover pack

50% deposit to start50% at launch2 revision rounds includedChanges quoted before any extra work
Build vs rent

Why build, not subscribe.

Off-the-shelf apps are a good start. Businesses come to us when they are paying for three of them and still running the rest on Excel.

Excel and WhatsAppOff-the-shelf appsKeystone build
Fits your exact workflowNoPartlyYes
Everything in one placeNoAcross several appsYes
Fees per staff loginNoneEvery monthNone
WhatsApp and PayNow built inManualSometimes, as add-onsYes
You own the code and dataData onlyNoYes
Changes when you need themIf you can do itWait for the vendorCare Plan or one-off
Pricing

Fixed prices. In writing.

Every engagement starts with a one-page scope listing what is and isn't included. The price you sign is the price you pay.

1 week

Discovery Sprint

S$500 – 800

Map the workflow, see a clickable prototype, get a fixed quote.

  • Workflow workshop
  • Clickable prototype
  • Credited to your build
1–2 weeks

Automation Quick Win

S$1,500 – 3,000

One painful manual task, automated end to end.

  • Excel to live dashboard
  • Form to WhatsApp alerts
  • Auto-generated invoices
Most requested6–8 weeks

Business System Build

S$4,200 from

Bookings, records and reminders, set up for your team and your data.

  • Booking, records, stock, reports
  • Staff logins and roles
  • Data migration and training
  • Founding rate from S$3,200
Monthly

Care Plan

S$150 – 400 / mo

Keep it fast, safe and improving after launch.

  • Hosting and backups
  • Bug fixes
  • Small monthly changes
10–16 weeks · for bigger builds

Custom Platform

S$15,000from · scoped after a Discovery Sprint · paid in 3 milestones

For systems with several kinds of users, a portal for your customers, or work that can't stop when the internet does.

Book a free call
  • Multiple roles, with logins and MFA
  • Customer or patient portal
  • Works offline, syncs safely later
  • Full audit trail of every change
  • Integrations with your other tools
  • Cloud setup, monitoring and handover

VSMS is a system of this size.An offline-first screening platform for a healthcare client, with seven staff roles and an audit trail. See the case

Project estimator

Price your project in thirty seconds.

Choose what you need and see an honest range. Your final price is fixed in writing after a short discovery session.

What are we building?

Features

Outlets or locations

11

Estimated investment

—
Book a free call

Indicative only. Founding clients get our launch rate, with the full business system from S$3,200.

Not sure which modules you need?

Tell us how your day runs. We will reply within 24 hours with the modules we would build and a fixed price.

Book a free 15-min call Try the live demo