Booking and Appointment Software
Online booking that fills your calendar and reduces no-shows.
We build booking and appointment software: services and staff calendars, slot rules, online payments and deposits, reminders and rescheduling on WhatsApp, waitlists, packages and reports, for clinics, salons, studios and service businesses.
- Slots and calendars
- Deposits
- WhatsApp reminders
Free 30-minute call with a senior specialist. Reply within one business day. Based in Jaipur, working with businesses across India.
- Discovery callFree 30 minutes with a senior specialist
- Scoped first phaseWritten scope, timeline and fixed price
- Build with weekly demosWorking software you can see every week
- Launch and supportGo-live with your team ready, then ongoing support
What is booking and appointment software development?
Booking and appointment software lets customers book services online against staff and resource calendars, pay deposits and receive reminders. Stack18 builds custom booking systems with WhatsApp reminders, packages, waitlists and reports for clinics, salons, studios and service businesses.
Last reviewed 31 October 2026 by the Stack18 delivery team in Jaipur. Security and AI governance · Pricing · About Stack18
| What it covers | Services and calendars; Customer booking; Payments and packages; Reminders; Business tools. |
|---|---|
| Typical first step | Discovery Sprint: 2 weeks; fixed price. |
| Custom build | Fixed-scope first release: agreed in discovery; fixed price after discovery. |
| Long-term option | Transformation Pod: 12–36 months; annual contract. |
| Measured by | No-show rate; Booking conversion; Calendar utilisation; Admin time per booking. Each against an agreed baseline. |
| Governance | Human approval at 5 governance gates before anything reaches production. NDA available on request. |
| Delivery team | Based in Jaipur, India. A senior specialist replies within one business day. |
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Booking and Appointment Software, end to end.
Each capability is delivered by the same team on the Agentic SDLC, with your approval at every critical step.
Services and calendars
Service durations, staff and resource calendars and buffer rules produce accurate availability.
- Service and duration rules
- Staff and resource calendars
- Buffer and break rules
Customer booking
Web and mobile booking with reschedule, cancel and waitlist options makes booking easy for customers.
- Web and mobile booking
- Reschedule and cancel
- Waitlist
Payments and packages
Deposits and prepayment, packages and memberships and refund rules secure revenue.
- Deposits and prepayment
- Packages and memberships
- Refund rules
Reminders
WhatsApp and SMS reminders, confirmation requests and follow-up messages cut no-shows.
- WhatsApp and SMS reminders
- Confirmation requests
- Follow-up messages
Business tools
A daily schedule, customer history and reports help staff run the day.
- Daily schedule
- Customer history
- Reports
A typical engagement, step by step.
Senior people lead every phase. Specialised AI agents on the Agentic SDLC handle the repetitive work, and nothing ships without your approval.
Discovery
We map today's process, systems and data for services and calendars; customer booking; and payments and packages, talk to the people who run it and agree the baseline for no-show rate and booking conversion so progress is measured from week one.
Design
We design the flows, roles, approvals and integrations for services and calendars; and customer booking, and review a clickable prototype with the people who will use it before anything is built.
Build in weekly demos
We build in weekly demos, starting with services and calendars, then customer booking and payments and packages. Each release is tested on your own data and passes a human approval gate before the next begins.
Launch and support
We migrate data, train your team and support go-live. After 30 days we review no-show rate, booking conversion and calendar utilisation against the baseline and agree what to extend next.
Start small. Scale when it works.
Every engagement begins with a short, fixed-price step so you can judge the fit before committing further. See pricing.
Discovery Sprint
Teams deciding which of services and calendars; customer booking; and payments and packages to build first, and what it should cost.
- Duration
- 2 weeks
- Pricing
- Fixed price
- Scoped plan and timeline
- Team and fixed price
- Process map or prototype
Fixed-scope first release
Teams that know the outcome they need from booking and appointment software and want a fixed-scope first release.
- Duration
- Agreed in discovery
- Pricing
- Fixed price after discovery
- Written scope and acceptance criteria
- Weekly demos
- Handover with documentation
Transformation Pod
Organisations running booking and appointment software across several teams, sites or systems over years.
- Duration
- 12–36 months
- Pricing
- Annual contract
- Dedicated cross-functional team
- Quarterly business reviews
- One accountable partner
What we have shipped, and what a typical engagement looks like.
Delivered projects link to the full case study. Illustrative scenarios describe typical engagements and are not named client results.
Multi-branch salon
- Challenge
- Bookings by phone; frequent no-shows.
- What we do
- Online booking with deposits and WhatsApp reminders.
- We would measure
- no-show rate, booking conversion and calendar utilisation, against a baseline agreed in week one.
Scoped in a 2-week sprint
Free appointment booking review
Tell us where appointment booking hurts most. We map what to fix first, whether ready-made or custom fits, and a realistic first step.
- Where to start and why
- Ready-made vs custom view
- Indicative timeline
We agree targets before we start.
Every engagement has a baseline and a target on the measures that matter to you, reported at every read-out.
Booking and Appointment Software questions.
Can customers book through WhatsApp?
Yes. We can build a WhatsApp booking flow using the official Business API. Messages use approved templates and recorded opt-ins, and provider fees are shown upfront.
Can we take deposits?
Yes. We integrate payment gateways with refund rules.
Does it work for several locations?
Yes. Locations, staff and services are managed separately with consolidated reports.
Can it sync with Google Calendar?
Yes, where it fits your staff workflow. Confidentiality terms are signed before we see your data, and access is limited to the people working on your project.
Is it custom or ready-made?
Custom, scoped in a two-week Discovery Sprint, reusing booking modules where they fit. We compare both routes with costs in the Discovery Sprint, so you can choose with the numbers in front of you.
How much does booking and appointment software cost?
Every engagement starts with a fixed-price Discovery Sprint that produces scope, a plan and a quote. Custom work is quoted at a fixed price once the scope is clear. Changes are agreed in writing before they are built, so the price you approve is the price you pay.
How do you measure success for booking and appointment software?
In week one we agree a baseline for no-show rate, booking conversion and calendar utilisation. We report them at every weekly demo and review them against the baseline 30 days after go-live, so results are measured rather than assumed.
What should we prepare before the first call?
Bring a short description of how booking and appointment software works today, examples of the documents or screens your team uses, and the three numbers that matter most to you. A senior specialist will use them to outline a first step and a fixed price.
Guides, comparisons and proof.
Mobile App Development Cost in India: Guide
What drives mobile app cost in India: features, platforms, offline use, integrations and launch.
Read →CompareReady-Made vs Custom Software: How to Choose
Ready-made systems go live in weeks at a fixed price.
Read →Case studyCase Study: Student Mental Wellness App
How Stack18 launched an Android and iOS mental wellness app for students in three months for a VC-backed…
Read →GuideSoftware Development Cost in India: What Drives It
What drives custom software cost in India, how fixed price, time and materials and dedicated teams differ, and…
Read →Let's scope your Booking and Appointment Software project.
Tell us where you are and where you want to be. A senior specialist will reply within one business day with next steps.
- Free 30-minute consultation
- Indicative estimate after the call
- NDA available on request