01
Calendar and slots
Free time, resources, staff.
01 What's included
What's included
Booking, payment and management in one system.
02
Online payment
Prepayment, deposits, refunds.
03
Sync
Google Calendar, Booking.com, Airbnb – no double bookings.
04
Reminders
Automatic messages to customers.
05
Customer account
Booking history, rescheduling and cancellation.
06
Admin panel
Schedules, staff, occupancy reports.
Your task
Didn’t find what you need on the list? Tell us about your task – we’ll suggest a solution and estimate the timeline.
Discuss a project02 Focus areas
Who it's for
- Hotels and apartmentsRoom booking and OTA sync.
- Clinics and salonsAppointments with specialists.
- RentalsCars, equipment, venues.
- Events and trainingTickets, seats, schedules.
03 Integrations and technology
Integrations
Booking.comAirbnbGoogle CalendarOutlookStripePayPalApple PayZoomTwilio (SMS)WhatsAppTelegramExpediaChannel managersMollieKlarnaGoogle MapsMailchimpSendGridCalendlyZapier
04 Portfolio
Our work
Car rental · Ukraine
Ucars
Design and development of a car rental website: search by city and dates, a filtered fleet, car pages and online booking.
WordPressPHPUI/UX
View project →05 Client review
«First they automated our business processes, then built the website. Quality and design are top-notch, and they don’t disappear after launch.»
Ratings and awards
Profile Clutchclutch.co
Profile GoodFirmsgoodfirms.co
Profile Freelancehuntfreelancehunt.com
IT-Rating 19client reviews
IT Rating of Ukraine Top 5 Laravel6 years in a row, 2020–2025
IT Rating of Ukraine Top 10 React2020–2024
● Guarantees
We work transparently
You know in advance what you will get, what it costs and when it will be ready.
Contract and NDA
We sign a contract and a non-disclosure agreement before work begins.
Fixed estimate per stage
The stage price does not change during work. New tasks only after approval.
Demo every two weeks
A staging server you can access: see what's done without waiting for the finish.
Your code and access
We hand over the source code, documentation and all access. The project is not tied to us.
Warranty period
After launch, we fix bugs found within the delivered scope for free.
Support after launch
We stay in touch: improvements, updates and growth, monthly or per task.
06 Questions
FAQ
Didn’t find the answer?
Leave your name and e-mail – we’ll reply by e-mail within one business day.
01How much does it cost to build a booking system?
Cost depends on the booking logic (time slots, nights, resources), payment rules, channel sync with Booking.com or Airbnb, the number of locations and whether you need mobile apps. A single-location appointment system is a smaller scope than a multi-vendor platform. We give a fixed estimate per stage after a short brief.
02How do I prevent double bookings?
Keep one source of truth for availability and sync every channel to it in both directions: your website, OTAs and staff calendars. Slots are reserved at checkout and released if payment fails. A channel manager or direct API integrations handle the sync.
03Custom booking system or a tool like Calendly?
Ready-made schedulers are fine for simple one-person appointments. A custom booking system pays off when you have several resources, complex pricing, deposits, OTA sync, your own branding or need to own client data and the code. You can also start simple and migrate later.
04Can a booking website sync with Booking.com and Airbnb?
Yes, either through a channel manager or direct integration where available. Availability and bookings update in both directions, so a room or apartment booked on one channel is closed on the others automatically.
05How can I take deposits for online bookings?
The booking flow charges a deposit or full prepayment via a payment provider such as Stripe or PayPal. Cancellation and refund rules are configured per service, and refunds are processed from the admin panel without manual bank work.
07 Often ordered together
Related services
05Portals and web servicesBooking services, tender platforms, client portals, city and industry portals.
02Mobile appsiOS and Android apps built with Flutter: one codebase, fast launch and updates.
07UX/UI designPrototypes and designs for websites, CRMs and apps. Design systems, 3D and motion.
11SEOTechnical audit, structure, content and links. Growth in organic traffic and rankings.● Learn more
Booking system development that fills your calendar
Booking system development pays off when clients book 24/7 on their own, double bookings disappear and reminders go out without anyone picking up the phone. We build booking services for hotels and apartments, clinics and salons, car and equipment rentals, events and training: free slots, payment, reminders and accounts in one system.
Read more
Calendar, slots and resources
Availability is calculated from staff schedules, rooms, vehicles or other resources. Buffers, working hours and holidays are set by rules, so the calendar shows only what can really be booked.
Prepayment and cancellation rules
Deposits, full prepayment and refunds follow your policy, processed via Stripe, PayPal, Apple Pay, Mollie or Klarna. Fewer no-shows means more paid hours.
No double bookings across channels
Two-way sync with Booking.com, Airbnb, Expedia or a channel manager, plus Google Calendar and Outlook, keeps every channel up to date. Clients get automated confirmations and reminders by email, SMS (Twilio) or WhatsApp and Telegram, and can reschedule or cancel in their account within the rules you set. Video consultations connect through Zoom.
Behind the scenes, the admin panel shows the schedule, staff and occupancy reports by location. Multi-branch businesses get a shared schedule with per-location settings. Client history, preferences and repeat-visit campaigns live in a CRM for client history and repeat visits, connected to Mailchimp or SendGrid.
Apps for clients and staff
A Flutter app for clients or staff adds push reminders and fast rebooking on iOS and Android from one codebase.
Booking platforms we build
We build standalone booking websites and larger multi-vendor platforms as part of our web portal and platform development. One example is the Ucars car rental service with online booking: a fleet catalog, booking flow and delivery of the car to the client, with distinctive UX/UI design. We name the first release timeline after a brief; we confirm scope and timing after a brief.
Let's discuss your service
Describe your task – within one business day we'll reply with questions and a rough timeline estimate.