Online appointment booking software

Online appointment booking that keeps business moving.

OpenSlot gives customers worldwide a simple way to book and gives you one calm place to manage appointments, services and availability.

No WordPress. No complicated add-ons. No booking chaos.

Hosted for you
Share one booking link
Worldwide
Business time zones included
Free to start
No card required

open-slot.com/book/haven-therapy/

SELECT A DATESeptember 2026
Booking confirmedFri 11 Sep · 11:00

Built for the way you work

  • Therapists
  • Coaches
  • Tutors
  • Salons
  • Consultants
  • Personal trainers
  • Pharmacies
  • Healthcare practices

Watch it work

From a new service to a booking in the diary.

A quieter way to stay booked

Your diary shouldn’t depend on a trail of messages.

When every appointment starts with “What times do you have?”, the admin grows quickly. Details get buried, gaps appear and follow-ups take over the day.

OpenSlot puts your real availability in one clear booking page. Customers choose a suitable service and time, while you keep control of what can be booked.

Explore how OpenSlot works
01

Your booking page, ready to share

A professional home for services, availability and the details customers need before they book.

02

Availability that works around you

Choose working hours, breaks, notice periods and time away without opening every hour of your week.

03

Payments without awkward follow-ups

Request a deposit or full payment during booking, with booking and payment status kept distinct.

From setup to booked

Open your calendar in three thoughtful steps.

Start simply, then add more services, staff and booking rules when the business needs them.

  1. 1
    SET YOUR DETAILS

    Create the service

    Add the duration, location, price and the information customers should see.

  2. 2
    CHOOSE YOUR HOURS

    Open useful times

    Shape availability around working hours, breaks, notice periods and time away.

  3. 3
    SHARE YOUR PAGE

    Let customers book

    Send one clear link and see new appointments arrive in your OpenSlot calendar.

Made for the customer in a hurry

Booking feels clear on the smallest screen.

Customers move through one decision at a time: service, staff, time and details. Important information stays readable and time slots stay easy to tap.

  • Useful times, not a crowded calendar
  • Prices and policies before confirmation
  • A secure link for future changes
9:41● ◒
H
Haven TherapyOnline appointment
CHOOSE A TIME

Friday, 11 September

50 mins£65
Continue
2 min

A focused booking journey with no account required for customers.

One calm place to work

See the day before it starts.

Appointments, customer details and availability stay connected, so the next useful action is always close by.

FRIDAY, 11 SEPTEMBER

Good morning, Emma.

TODAY6appointments
BOOKED4h 40mclient time
PAYMENTS£260received this week

Today’s schedule

Day Week
Alex MorganInitial consultation · Online
Confirmed
Priya ShahFollow-up session · Online
Paid
Jamie WoodInitial consultation · Online
Confirmed

The details, handled

Built around appointments, not endless configuration.

Working hours with breathing room

Add breaks, buffers, minimum notice and time away without rebuilding the week.

Reminders that arrive on time

Planned email reminders give customers the right details before their appointment.

£

Clear payment status

See what is due, paid or refunded without confusing payment status with the booking itself.

Start with what you need

Simple plans, with room to grow.

Start free, then choose Solo or Team billing when your booking operation grows.

Free

For trying online booking with one simple service.

£0forever
  • One user
  • One service
  • Up to 20 bookings each month
  • OpenSlot branding
Start free

Team

For small teams coordinating people, services and schedules.

£29/ month
  • Up to five staff members
  • Everything in Solo
  • Staff scheduling
  • Team permissions
Upgrade to Team

On your phone

Your diary, an app on the home screen.

Tap it like anything else on the phone. No browser, no address bar, nothing that feels like a website in disguise.

The Android home screen with OpenSlot installed The OpenSlot splash screen OpenSlot open full screen on the phone
  • 01 It sits on the home screen

    Right there with everything else you open during the day.

  • 02 It opens as itself

    Your icon and your colours, not a browser warming up.

  • 03 And you are straight in

    No address bar, no tabs, nothing to get lost in.

Questions, answered

A clear start before you open your calendar.

OpenSlot is in active development. These answers describe the intended hosted product and make current limitations explicit.

Ask another question
What is OpenSlot?

OpenSlot is hosted online appointment-booking software for service-based businesses. It gives you a shareable booking page and one place to manage services, availability, customers, payments and appointments.

Do I need WordPress or a website?

No. OpenSlot is hosted for you. You can share your OpenSlot booking link from social profiles, messages, email or an existing website.

Who is OpenSlot designed for?

OpenSlot is designed for independent professionals and small teams worldwide, including therapists, coaches, consultants, tutors, salons, barbers, personal trainers, pharmacies and other healthcare practices.

Can I use OpenSlot outside the United Kingdom?

Yes. OpenSlot is a browser-based service designed for businesses and customers worldwide. Each booking page shows appointment times in the business time zone.

How do I start taking bookings?

Create an account, add a service and staff member, set bookable working hours, then publish and share your OpenSlot booking link.

Your time, open for business

Make it easier to choose you.

Give customers a clear way to book and give yourself fewer messages to manage.

Start taking bookings Start free. No card required.
Coming soon toGoogle Play Coming soon to theApp Store Direct downloadAndroid APK

APK 1.1 MB · v1.0.0 · Android 5.0+ Your phone will ask you to allow installs from your browser, and a sideloaded app does not update itself.