Your appointment types
We define services, duration, buffer times and required details with you. Cancellations and special cases are part of the planning.
Online appointment booking
Online booking on your website: book, remind, come back.
Customers book themselves. The appointment reminder, review request and follow-up reminder then run automatically, without your team having to think about them.
Discuss online bookingFree initial call by video · Directly with Victor Knapp
How a customer books
Three steps to a classic appointment.
Choose the type of appointment, choose a free time, receive the confirmation. Sample view, based on the booking at Privatpraxis Lindenthal.
1 · Type of appointment
Same-day appointmentInitial consultationFollow-up2 · Time
08:3009:1510:0011:3014:0016:453 · Confirmation
Appointment bookedThe confirmation arrives immediately by email.
That was the classic way.
Now we'll show you what makes our appointment booking special.
After the booking
A system built around your business.
We set up the booking the way your business works and connect it with three automatic steps. We write every message with you, in your tone and in your name. You decide which steps you use.
1 · Before the appointment
The appointment reminder
The day before, your customer receives a short message by email, text or WhatsApp, with the time, address and a link to reschedule. Anyone who can't make it cancels in good time, and the slot becomes free for others.
15 % instead of 21 %
With digital reminders, 15 % of appointments were missed; without reminders, 21 %. That's around a quarter fewer missed appointments.1
Analysis of 21 studies, conducted in healthcare. The effect in an individual business may differ.
2 · After the appointment, if you wish
The review request
A few hours after the visit, your business says thank you and asks for a Google review, with a direct link. All customers who have agreed receive the same request and nothing in return; Google's rules require this too.2 Asking brings more reviews and a more realistic overall picture.3
83 %
of those who were asked for a review went on to write one.4
Online survey by the marketing software provider BrightLocal, USA 2026, 1,002 respondents.
3 · A few weeks later, with consent
The follow-up reminder
Example hair salon: around six to eight weeks after the cut, at an interval you set, a short message arrives: “Time for your next appointment? Here are your free slots.” One click, and the appointment is booked. If you like, with a voucher code or news from your business; an offer mainly works as a reminder.5
13 % more visits
came from regular email reminders in a field experiment.6
Studied among members of a gym. The effect in an individual business may differ.
Everything only with your customers' consent, and they can unsubscribe at any time. When booking, every customer chooses which messages they want to receive.
As personal as before
For your customers, it stays personal.
The messages carry your name and sound like your business. Once set up, they create no extra work for your team: no one has to remember reminders, keep lists or chase.
Already running: appointment reminders at Privatpraxis Lindenthal (see below), review requests and follow-up reminders in other acessio client projects.
Why now
Your customers have long been booking online.
Arranging appointments by phone costs both sides time. Many of your customers are now used to booking themselves, whenever it suits them.
64 %
of people in Germany have already booked a doctor's appointment online. In 2023, it was 36 %.7
Bitkom Research 2025, representative survey in Germany, 1,145 people aged 16 and over.
84 %
of those who book online or would like to value not depending on reaching someone by phone.7
Bitkom Research 2025, Germany, context: doctor's appointments.
47 %
prefer to reserve a restaurant table online.8
Bitkom Research 2024, representative survey in Germany, 1,005 people aged 16 and over.
Every week without appointment reminders is a week with avoidable gaps in the calendar.
From a client project
Lindenthal: three websites, one calendar.
At Privatpraxis Lindenthal, three websites lead into one shared appointment calendar. Confirmations and appointment reminders 24 and 2 hours before the appointment go out on their own; no one in the practice sends them by hand.
“What impressed me most was the combination of technical expertise and genuine commitment.”
Your project
What we set up for you.
A booking that works on mobile
Embedded in your website, tested on smartphones and with the keyboard.
The steps after booking
Appointment reminder, review request and follow-up reminder, connected to your calendar, with separate consents. We state clearly what runs automatically and what your team takes care of.
Sounds like a fit for your business? Discuss online booking → · or call: +49 152 562 013 06
Working together
From the first conversation to delivery.
You decide based on a concrete proposal.
How we work together
We record appointment types, calendars and the steps your team takes today after an enquiry.
You test a concrete flow with test cases: a normal booking, no suitable availability and changing an appointment.
After your approval, we set up the agreed flow and document responsibilities and what to do if problems arise.
FAQ
What clients want to know first.
What do you promise, and what not?
We promise a booking that fits your appointment types and works on mobile. Appointment booking is not a patient or customer management system. With sensitive data, we check in advance which details the booking needs and where the services involved process them. We don't promise how much the number of missed appointments will fall.
Can my existing calendar stay?
We check which connection to your calendar is possible and makes sense. A switch is only suggested if your current setup can't support the agreed flow.
Can appointments be paid directly?
That can be part of the solution if the booking and payment services are suitable. For medical services, billing happens after the appointment. Fees, refunds and exceptions must be built into the process.
What if no suitable slot is free?
The page should then offer a clear alternative way to get in touch. We plan for that case just as carefully as for a successful booking.
Can I leave out individual steps?
Yes. Appointment reminder, review request and follow-up reminder can each be chosen separately. You can also start with the booking alone.
Do I have to send the messages myself?
No. You approve the texts once, and after that they run automatically. You can have the wording changed at any time.
How do you obtain my customers' consent?
Directly in the booking, with separate, unticked boxes for the appointment reminder, review request and follow-up reminder. Every message includes a way to unsubscribe. We agree the wording with you; it doesn't replace a legal review in the individual case.
Your next step
How do your customers book today?
Phone, email or a portal: in the free first call, we look at how you do it today and show which of the three steps will help you most. You know the scope and the cost before we begin.
Discuss online booking
Victor Knapp
Your direct contact
+49 152 562 013 06
Sources
- Robotham, D. et al.: Using digital notifications to improve attendance in clinic: systematic review and meta-analysis. BMJ Open 6(10), 2016. Meta-analysis of 21 studies, healthcare. Read the study
- Google: tips for getting more reviews; review policy (incentives and selectively asking only satisfied customers are not allowed). Google Help · Policy
- Karaman, H.: Online Review Solicitations Reduce Extremity Bias in Online Review Distributions and Increase Their Representativeness. Management Science 67(7), 2021. Read the study
- BrightLocal: Local Consumer Review Survey 2026, published on 11 Feb 2026. Online panel (SurveyMonkey), 1,002 adults in the USA; survey by a marketing software provider, self-reported by respondents. View the survey
- Sahni, N., Zou, D., Chintagunta, P.: Do Targeted Discount Offers Serve as Advertising? Evidence from 70 Field Experiments. Management Science 63(8), 2017. Online ticketing platform, USA. Summary
- Habla, W., Muller, P.: Experimental evidence of limited attention at the gym. Experimental Economics 24(4), 2021. Field experiment with members of a gym. Read the study
- Bitkom Research: Zwei Drittel vereinbaren Arzttermine online (two thirds book doctor's appointments online). Press release of 22 Dec 2025; representative survey in Germany, 1,145 people aged 16 and over. Read the press release
- Bitkom Research: press release on restaurants and cafés of 27 Jun 2024; representative survey in Germany, 1,005 people aged 16 and over. Read the press release
All sources accessed on 22 Oct 2026. Studies show averages; the effect in an individual business may differ.