Services · Mobile app development · Appointment booking apps

Booking apps that fill London diaries and keep no-shows down.

Codeeo handles appointment booking app development London businesses can run as their own product: private clinics around Harley Street, West End salons, physios in the City, tutors, dentists and mobile services that cross several boroughs in a day. Clients pick a slot, pay a deposit and get reminders, while your team works from one live diary instead of phone notes, inbox threads and a third party marketplace that owns the customer.

As an appointment booking app development company London clients work with remotely, we have no office in the capital. Discovery, design reviews and sprint demos all run by video call. What you get is a booking product shaped around how your sites, staff and customers actually move through the city.

Built for
Clinics, salons, studios, consultancies and mobile service firms booking clients across Greater London.
Typical timeline
Timing is set after discovery, once the first release scope is written and you have approved it, and every later phase is planned the same way.
What you own
Source code, app store accounts, the booking database, customer records and payment provider accounts, all held in your company's name.
Rated
4.7 / 5 from 23 Google reviews

200+ companies servedFrom a first store to an ADX listed developer

Modon
Majid Al Futtaim
HP
Belkin
Dulsco Group
OneClickDrive
Hanayen
HMS
Clocksprings
Ghezlan

What the app can include

Features built for a city where every slot is contested.

London diaries break in particular ways. A client in Canary Wharf wants a seven o'clock slot before the office, a tourist books from another time zone and then misses the Elizabeth line connection, and a branch in Clapham fills while the Marylebone site sits half empty. A generic booking widget treats these as edge cases. We treat them as the core of the product.

The list below is a menu, not a fixed package. Most London operators start with live availability, deposits and reminders, then add multi branch logic, corporate accounts or mobile routing in later releases. Each feature connects to an admin dashboard your reception and managers use every day, and each is scoped against your real booking data so we build what earns its place.

Explain your project
  • Live availability across branches

    One view of every practitioner, room and chair across your London sites. If Soho is full at lunchtime, the app offers the nearest open branch and shows how to get there, so the client books rather than leaving to search elsewhere. Branch pages carry opening hours, the nearest Tube station and step free access notes.

    Demand moves between branches instead of being lost.

  • Deposits and cancellation rules

    Card or wallet deposits taken at booking with Strong Customer Authentication handled by your payment provider, plus clear cancellation windows written into the flow. The total price, including any booking fee, is shown before the client confirms, which UK consumer law expects. Deposits can vary by service and by time, so a Saturday colour appointment can carry more than a weekday trim.

    Late cancellations cost you less and disputes drop.

  • Cancellation waitlist

    Clients join a waitlist for a fully booked practitioner or time. When someone cancels, the app offers the slot to the next person by push notification and holds it briefly, so prime evening appointments rarely go empty. Clients can choose how much notice they need, so someone working in Holborn only receives offers they can realistically reach.

    Freed slots are rebooked within minutes.

  • Time zone aware booking for visitors

    Visitors from abroad booking a treatment or consultation see times in London time with their own clock alongside, and reminders arrive at sensible hours after they land. This matters for clinics and salons serving overseas clients and hotel guests. Booking links can also be shared by hotel staff or travel agents on the client's behalf.

    Fewer missed appointments from time zone confusion.

  • Corporate and concierge accounts

    Employers in the City or Canary Wharf can buy blocks of wellness or health check appointments for staff, and hotel concierges can book on behalf of guests, each with their own login, invoicing and visibility rules. Monthly statements go to the employer, while the staff member's clinical or treatment details stay private to them.

    B2B bookings run through the same diary as walk-in clients.

  • Route aware scheduling for mobile teams

    For home visit services such as mobile physios, beauticians or engineers, the scheduler accounts for travel time between postcodes and avoids booking north and south of the river back to back. With ULEZ covering every borough, fleet vehicle details can sit on each staff profile. Staff see the full day on a map.

    Technicians spend more of the day with clients.

  • Clinical intake and consent forms

    Pre appointment questionnaires, consent forms and medical history captured in the app and attached to the booking record. For CQC registered clinics we design access controls and audit logs so practitioners see what they need and nothing more. Forms can be completed on a phone on the train in, so the waiting room is not where paperwork happens.

    Consultations start with the paperwork already done.

  • Group classes and shared resources

    Pilates studios, yoga rooms and treatment suites often book capacity rather than a single person. The app handles class sizes, equipment such as reformers, room dependencies and class packs, so a Fitzrovia studio can sell ten session bundles and still stop a room from being double booked when two therapists need it at once.

    Rooms and equipment are booked as carefully as people.

  • Reception and manager dashboard

    A web dashboard for front desk staff to move bookings, block time, mark arrivals and handle walk-ins, with utilisation and no-show reporting by branch and practitioner for managers reviewing the week. Arrivals can be marked from a tablet at the door, and late running practitioners can notify the next client from the same screen.

    Managers see which sites and hours actually earn.

  • Calendar and system sync

    Two way sync with Google Calendar or Microsoft 365 for practitioners who keep personal diaries, and connections to practice management, CRM or accounting tools through their APIs where they exist. A personal dentist appointment in a practitioner's own calendar blocks their bookable time without revealing any detail to the clinic.

    No double bookings between systems.

Who this is for

Four kinds of London operator we build for.

A booking app earns its keep when the diary is the business. In London that usually means high rents, staff who are expensive to leave idle and clients with many alternatives a short walk away. Below are the situations we hear most often from operators in the capital, and how the first release changes for each one. If yours is not listed, the same discovery process applies.

One pattern is common to all four: the operator has outgrown a booking widget that cannot express its rules, but does not want to hand its client list to a marketplace either. A custom appointment booking app development London project fixes that by putting the rules, the data and the brand in one place you control.

01

Private clinics in Marylebone and beyond

Independent clinics around Harley Street and Wimpole Street often run consultants who hold sessions at several sites and keep their own diaries. The first release usually focuses on consultant availability, intake forms, consent and deposits for new patients, with sensitive data handled under UK GDPR and the access rules a CQC inspection would expect to see. Self pay patients and those arriving through insurers can follow different booking paths in the same app. Consultants can see their whole week across sites in one view.

Health data is special category data, so we plan its handling first.

02

Salon and barber groups across several boroughs

A group with sites in Shoreditch, Islington and Battersea needs one brand app, shared client profiles and stylist level availability. We build branch switching, rebooking from past appointments and loyalty, and give each manager control over their own rota while head office sees the whole estate in one report. Stylists moving between branches carry their client notes, colour formulas and preferences with them, and clients can follow a favourite stylist to whichever site they work at next. Gift vouchers work at every branch.

Clients follow stylists, so profiles follow clients.

03

Professional services with lunchtime demand

Physios, osteopaths, opticians and wellness studios near the City see demand bunch around early mornings, lunch and the hour after work. The app prioritises those windows, supports short express appointments and lets employers fund sessions for staff under a corporate account. Short appointments need a booking flow that takes under a minute on a phone, with saved details and one tap rebooking for regular clients who come back every few weeks for the same treatment. Reminders arrive the evening before.

04

Mobile services covering Greater London

Home beauty, cleaning, tutoring and repair businesses lose hours to badly ordered visits. We build postcode coverage rules, travel buffers and a staff app with the day's route, so a customer in Croydon is never booked straight after one in Enfield unless you allow it. Customers see a live arrival window on the day, which cuts the calls asking where the technician is. Staff can mark jobs complete and take payment on the doorstep. Parking permit notes can sit on each job.

How a London booking app goes from idea to launch.

  1. 01Diary audit by video callWe review your current bookings, cancellations and no-shows by branch and hour, then interview reception staff about where the existing system forces workarounds. Mystery bookings on your current channels show where clients drop out.
  2. 02Booking rules written downDeposit amounts, cancellation windows, buffer times, room dependencies and staff skills are documented as rules the app enforces, agreed with you before design begins. Exceptions such as VIP clients are written down too.
  3. 03Client and staff screensWe design the client booking flow, the practitioner view and the reception dashboard together, testing them with real staff so busy front desks can work at speed. Accessibility checks run during design.
  4. 04Build in short sprintsEach sprint ends with a working demo by video call. Payment, calendar and system integrations are built against test accounts first, then switched to live credentials at launch. You can test every build on your own phone.
  5. 05Pilot at one siteWe launch at a single branch or for one team, watch real London traffic, fix friction, then roll the app out to the remaining sites in an agreed order. Staff training happens before the pilot opens.
  6. 06Measure and refineUtilisation, no-show and rebooking reports guide the next release, whether that is a waitlist, corporate accounts or deeper practice management integration. Reports are reviewed with you after each release. Nothing changes without you.

Technology

What we build this with.

We choose the stack around your existing systems and the people who will maintain the app after launch. Typical builds use React Native or Flutter for the iPhone and Android apps, a Laravel or Node backend, a web dashboard for reception, and payments through a UK regulated provider. Hosting sits in a UK or EU region when your data policy calls for it.

01Mobile

  • Swift
  • Kotlin
  • Flutter
  • React Native

02Data and cloud

  • PostgreSQL
  • MySQL
  • MongoDB
  • AWS
  • Azure
  • Docker

03Marketing and tracking

  • GA4
  • Google Tag Manager
  • Search Console
  • Meta Pixel
  • Looker Studio

Questions London operators ask about booking apps.

It depends on branches, integrations and booking rules, and we agree the timing after discovery.

A single site with standard services and deposits is much quicker to build than a group with shared practitioners, corporate accounts and a practice management integration. During discovery we list every rule and connection, split them between a first release and later phases, and give you a written schedule before design starts. Piloting at one London branch first also shortens the path to real use. The biggest variables are usually the integration with an existing practice management system and how many branches share practitioners.

Tell us what the business needs. We will tell you what to build first.

Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.

Get in touch

PROVEN RESULTS

4.7 / 5from 23 Google reviews