Psychotherapist. Clinical psychologist. Software developer with many years of IT experience at Microsoft. And the practitioner who used to spend his evenings writing invoices. I wanted to do therapy, not administration. So I built TimeInvoicer.
In 12 seconds
No slideshow — this is the real app, recorded on the device.
We recommend an iPad or a tablet with a large screen if you want to take notes during sessions.
From practice, for practice — publications born directly from therapeutic experience.
My career began outside the therapy room. At Microsoft in Munich, I worked in technical support for enterprise customers. The experience taught me to make complex technical workflows reliable and understandable.
After that, I moved to Vienna in a management role, where I was responsible for the security and support of major enterprise customers across Austria. Banks. Insurance companies. Corporations. Organizations where a data breach wouldn't just be inconvenient — it would be existential.
In the corporate world, I saw every day what pressure, overwork, and constant availability do to people. Burnout wasn't an abstract diagnosis — it was the faces of my colleagues.
At some point, the question became unavoidable: Do I want to keep being part of the system that burns people out? Or do I want to become part of the solution?
Between my studies and my own practice lay years that shaped me more than any certification. At the crisis helpline of the Archdiocese of Vienna I accompanied people through crises — often callers who had no one else. That is where you learn to listen without immediately offering a solution.
I then worked as a clinical psychologist in settings where a great deal is at stake: at the child protection centre „die Möwe“, with the Lichtblick association, in the oncology department of Donauspital and at Waldsanatorium Perchtoldsdorf. People in exceptional circumstances — and colleagues doing their work with great care under difficult conditions.
Alongside this, in 2009 I began training in hypnopsychotherapy: first the propaedeutic course, then roughly eight years of specialist training at the ÖGATAP. A depth-psychology based method that combines therapeutic conversation with therapeutic trance — still a focus of my work today.
When I started my practice, I faced the same problem as thousands of colleagues: Administration eats the time that should belong to patients. Writing invoices, looking up insurance billing codes, exporting data — all after an already intense day.
My psychotherapy practice and long-standing technical experience came together. I founded TimeInvoicer in July 2026. The software grew from my own practice and supports small practices and self-employed professionals with recurring administration and billing tasks.
The rare combination of therapeutic empathy and technical precision.
Many years of technical experience, including support and management work at Microsoft. A practical foundation for building clear and dependable software.
Clinical psychologist, psychotherapist, and hypnopsychotherapist in private practice. I don't just understand how software works — I understand what you need in your practice.
Professional books that come directly from clinical practice — for therapists, coaches, and those affected.
TimeInvoicer is not the product of an anonymous software corporation. It is the tool of a colleague who does the same work as you — and who wants you to spend your time on what you set out to do: helping people.
Three principles that guide every decision at TimeInvoicer.
Every feature must make the app simpler, not more complex. If something takes more than 3 taps, we rethink it.
Invoices, reports, time confirmations, fee calculations, payment reminders, and much more. Everything is derived from your calendars. This guarantees your security and saves you from additional data maintenance.
Smart automation replaces manual input and handles routine tasks. It doesn't add complexity — it takes it away.
Developed in Lower Austria. For psychologists, psychotherapists, psychiatrists, and other therapists.
Developed under the leadership of a psychologist and psychotherapist.
Quality through automated testing. Every change is verified before it ships.
No tracking, no ads, no mandatory cloud. Your patient data never leaves your device.
Built with the know-how from five years at Microsoft — and five years running my own software company.
Questions, feedback, feature requests — I'd love to hear from you. Personally.
Questions, ideas, or feedback? I reply personally — because I care that TimeInvoicer works for you.
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