Swiss data protection
- Bookings on Swiss servers
- Photos encrypted, deleted 30 days after the appointment
- No tracking, no advertising cookies
Zytfenster is the booking tool for practices, therapists, coaches and the self-employed. You build it into their website, their clients book in three steps, and the data stays in Switzerland.
Give it a try. This is the real form of a sample practice, in German for now.
This is the real booking page of a sample practice, in German for now. Nothing is stored or sent, promise.
Most booking tools are built for sales teams. Zytfenster is made for practices and self-employed professionals who handle sensitive data and have no time for complicated software.
The patient uploads a photo before the appointment. Afterwards, it’s deleted.
First consultation and follow-up appointments, with a buffer between treatments.
Video call, with the link right in the confirmation.
Treatments of different lengths, with a reminder the day before.
Requests instead of fixed bookings. You confirm, and the appointment is set.
All appointments at a glance, absences in two clicks, your own wording for every email. I’m happy to show it to you myself in a short video call.

Zytfenster runs on standard Swiss hosting with PHP, and there’s no database to set up. You bill your clients for the setup and support.
<!-- 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"]
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.
Zytfenster is free. You only pay for what takes work: installation, hosting with me and support.
You install Zytfenster yourself. It’s easier than you think.
Fixed price. I set up Zytfenster on your hosting and build it into your website.
Zytfenster runs on my Swiss hosting. All you do is link to your booking page. That works out at CHF 10 a month.
Support for all options: CHF 180 an hour, billed in 15-minute increments.
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 made by one person. If you write to me, I’ll answer you myself.
At walterlernt.ch I teach web design courses, at arto.ch you’ll find my work, and at kopfgerecht.ch I help people learn.