CoolHead App

Coaching application for migraine patients


The biggest challenge during the project was to design an app that is not overwhelming to users who are having severe headache and light sensitivity.

The CoolHead app is used during the clinical trials of the CoolHead system; a portable medical cooling device, designed for home-use by migraine patients. It has two key features to support the participants during clinical trials:

  •  Guiding users throughout the use of the device
  •  Surveying participants to provide feedback about the treatment efficacy

Pilotfish was responsible for the development of the CoolHead app from scratch. Taking into account the migraine patients’ special requirements, we developed a visually soothing app experience that minimizes the cognitive load on the users. 1 screen = 1 task, simple phrasing, step-by-step instructions, clear feedbacks.

months project
Pick your favorite accent color.
The change will affect all text, buttons and visuals in the app.
Adapt the contrast of the app to your needs.
The contrast icon is available everywhere.
Pilotfish did: 

Usability Research

The usability research enabled the Pilotfish team to explore the difficulties of using the CoolHead device and develop an app that clearly elaborates on its use.

User interviews

The user interviews helped us to better understand migraine patients’ struggles and needs.


Personas, based on our user interviews, helped both the Pilotfish team and our client to easier empathize with migraine patients and develop their customer journey.


The wireframing process allowed the Pilotfish team to translate the user interview and research insights into first tangible concepts.

User interface design

The user interface was stripped from all distractions in order to allow the user to only focus on one instruction or question at a time.

Front-end development

During the front-end development the design and the development team closely collaborated in an iterative process to ensure that the final app meets the design vision.

Behind the Scenes

After having interviewed numerous migraine patients, the Pilotfish team was able to deeply empathize with migraineurs and take into account their special needs at each decision, such as formulating the design vision, wireframing, visual design or development.

Curious? Let's talk;