Hosted in Switzerland. Built for data protection.
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For agencies and anyone who builds websites

Appointment booking, built for privacy

For your clients’ websites: practices, therapy, coaching and anyone who takes appointments. Bookings stay in Switzerland, photos are encrypted and nobody gets tracked. Zytfenster is free; you build it in and charge for the setup.

You take appointments yourself and don’t want to install anything? I’ll set it up for you.

Hosted in SwitzerlandPhotos encryptedNo tracking
Zytfenster admin area showing upcoming appointments Booking page on a phone
Mini demo

How your clients book

Try it out. This is the real form of a sample practice, ending with the email that would go out.

app.zytfenster.ch/?k=praxis-sonnenhalde

Nothing is saved or sent, promise.

What Zytfenster does differently

Built for people, not sales teams

Most booking tools want to measure, sell and follow up. Zytfenster wants the people who book to feel they’re in good hands. And it wants everyone who takes appointments to spend their time on their clients rather than on software.

Many booking tools
DataMany booking toolsoften stored in the USstored in Switzerland
Photos before the appointmentMany booking toolsrarely possibleencrypted, deleted after the appointment
TrackingMany booking toolsanalytics cookies are the normno tracking
Admin areaMany booking toolslots of menus and optionsfive tabs, one checklist, no training needed
BrandingMany booking toolsprovider’s logo front and centrecustom colour and logo
CostMany booking toolsmonthly, often per userCHF 0, optional installation CHF 390
Why Zytfenster

Three reasons you can explain to your clients in one sentence

“Bookings stay in Switzerland, photos are encrypted and deleted after the appointment, and there’s no tracking.”

Swiss data protection

  • Appointments on Swiss servers
  • Photos encrypted, deleted automatically after the appointment
  • No tracking, no advertising cookies
More on data protection

The right features

  • Photo upload before the appointment
  • Sync with up to five calendars
  • Email reminder the day before
All features

Easy to use

  • Booking in three steps
  • Setup with a checklist
  • Sign-in by link, no password at all
Try the demo
Sectors

For anyone who works by appointment

Medical practices and dermatology

The patient uploads a photo before the appointment. Afterwards, it’s deleted.

Therapy and physiotherapy

First consultation and follow-up appointments, with a buffer between treatments.

Coaching

Video call, with the link right in the confirmation.

Beauty and hairdressing

Treatments of different lengths, with a reminder the day before.

Consulting

Initial consultations and meetings, as requests if you prefer. You confirm, and the appointment is set.

Web design, graphic design and support

Support sessions and meetings with your own clients, online or in person.

Admin area

The admin area, as simple as the booking

All appointments at a glance, absences in two clicks, your own wording for every email. Try it yourself, no login needed, with sample appointments.

Admin area, Services tab
For agencies

Built in with a plugin or two lines of code

Zytfenster runs on ordinary hosting with PHP and brings its own database. You bill your clients for setup and support.

WordPressBlock editor, Elementor, Divi, Bricks Builder, Beaver Builder and any other page builder that takes shortcodes
HTML and CSSTwo lines of code on any site you build yourself
Any other websiteAs a link or button, anywhere you can put a link
<!-- Knopf «Termin buchen» auf jeder Website -->
<a href="https://termine.praxis.ch/?k=sonnenhalde"
   data-zytfenster-button data-k="sonnenhalde">
  Termin buchen
</a>
<script src="https://termine.praxis.ch/embed.js" defer></script>

<!-- oder in WordPress -->
[zytfenster art="knopf" text="Termin buchen"]
To be honest

Free means free. The catch is the support.

Zytfenster costs nothing, with all features and all updates, for as long as you like. What I can’t offer for free is my time. If you need help, you pay for it. That’s all there is to it.

When Zytfenster isn’t the right fit (yet)

  • Several people with their own calendars. A practice with three therapists currently needs three accounts. I’m working on it.
  • Payment when booking. Zytfenster takes appointments, not money.
  • Group classes with a fixed number of places. There are better tools for that.
  • Booking page and admin area in French, Italian and English. On the way, but not here yet. For now, the app itself is in German only.
Pricing

Free, or I’ll do it for you

Zytfenster is free. You only pay for what takes work: installation, hosting with me and support.

I’ll install it

390CHF

Fixed price. I set up Zytfenster on your hosting and build it into your website.

  • Installation and cron job
  • Services, times and calendars
  • Colour, logo and embedding
  • Short introduction for the practice
Request installation

Hosted by me

120CHF a year

plus a one-off setup fee of CHF 290

Zytfenster runs on my Swiss hosting at app.zytfenster.ch. You just share your booking page. The first year comes to CHF 410, then 10 francs a month.

  • Hosting in Switzerland
  • Updates and daily backups
  • Data processing agreement (DPA) included
  • Setup of services, times and branding
Request hosting

All prices excluding VAT. Support for all options: CHF 180 an hour, billed in 15-minute increments. I fix bugs in Zytfenster itself free of charge, for everyone.

Arto Steiner
Who’s behind Zytfenster

Hello, I’m Arto

My name is Arto Steiner, and I’ve been building websites for Swiss SMEs and self-employed professionals for many years. Zytfenster came about because a web designer was looking for a booking tool for her client: simple, with photo upload and with proper data protection. She couldn’t find one.

Zytfenster is a small product of my own. If you write to me, I’ll answer you myself.

And what if I’m not around one day? The code and data stay with you, and Zytfenster keeps running. There just wouldn’t be any more updates.

At walterlernt.ch I teach courses, at arto.ch you’ll find my web design work, and at kopfgerecht.ch I help people learn.