Teun Loverbos
Tinnitus expert
As a manual therapist, Teun treated people with tinnitus for years. He knows the subject inside out and guards everything that makes it into the app — from every exercise to every explanation.
About us
No boardroom, no business plan — Freequency began as a chance encounter between a therapist with a question and a game maker with an answer.
Manual therapist Teun Loverbos kept seeing people with tinnitus in his practice — and too often had to send them home with the message to learn to live with it. At a networking event he told Rob Hulsen, who had been making games with a purpose for years. Neither of them could let that conversation go — and it became the start of Freequency.
Science pointed the way: tinnitus shows striking parallels with phantom pain, where mirror therapy makes the invisible visible. Jeffrey Lanters used game design to turn that insight into an app that places your tone into the space around you, and innovation specialist Sophie Asveld brought Freequency into healthcare. What began with four people grew into a team — and an app that is played every day.



The journey
At a networking event, manual therapist Teun Loverbos tells game maker Rob Hulsen about his tinnitus patients — and about the question that keeps him up: why is there so little out there for them?
Inspired by mirror therapy for phantom pain, a first augmented-reality prototype grows into a fully-fledged game — tested and refined with hundreds of people with tinnitus.
The app launches in the App Store, complete with the 100-day program and Professor Tone as your guide.
Freequency wins the audience award of the Dutch National Healthcare Innovation Prize. Hospitals and audiology centers start pilots and scientific research.
The app arrives on Android and Freequency — backed by an international advisory board — takes its first steps beyond the Netherlands.
Want to read more of our story? Our articles feature interviews, news, and stories from users. All articles
Our mission
Why we build help that works at home, bridges waiting lists, and gives back to research — read what Freequency stands for.

The team
Freequency is made by a small team that brings healthcare and game design together — with short lines and a lot of love for detail.

Tinnitus expert
As a manual therapist, Teun treated people with tinnitus for years. He knows the subject inside out and guards everything that makes it into the app — from every exercise to every explanation.
Innovation specialist
Sophie connects healthcare, research, and practice. She guides the pilots with hospitals and clinics, stays in touch with researchers and users, and makes sure Freequency grows in a way that strengthens care.
Product and app
Jeffrey designs software using the principles of game design: test a lot, learn through play, and make every interaction feel right. He is responsible for Freequency's product and app — from the first sketch to every update.
Business and strategy
Rob focuses on the business side of Freequency: the strategy, the partnerships, and the network around the app. He makes the connections — from clinics to partners abroad — and makes sure a good idea also stays a healthy business.
Animation and illustration
Maxime draws and animates everything that gives Freequency its character — from the illustrations and animations in the app to the posters, flyers, and store artwork around it.
Design and brand identity
Priscilla guards the face of Freequency: the design and the brand identity. From the screens in the app to the artwork in the stores — everything feels like one whole.
Software developer
Martin develops the app and the technology behind it — from new features and the Android version to analytics and the systems behind the pilots and research.
Communication and support
Wiske takes care of communication and support: the newsletter, the socials, and the answers to your questions. Send us a message, and chances are she is the one who replies.
Work with us
From content creators to care specialists and researchers — Freequency grows thanks to people who share their expertise. Sound like you?

The advisors
Behind the core team stands an international advisory board of audiologists, clinical psychologists, and scientists. They test the program against the latest insights, help shape new features, and appear in the app themselves — in the videos and articles you encounter along the way, each one made and recorded by them and the team.
Not as a formality, but as active partners: every big step Freequency takes has passed the board first. That is how the app stays true to what is scientifically sound — and to what works in practice.