MASS // Mental Performance

MASS – Visual ID

The task was to create a strong visual identity for Mass, a mental training app designed to help athletes strengthen focus, motivation, and performance through data-driven insights.


We recently started working with Nicolai Berthelsen, and from the very first project, he has impressed us at MASS. Nicolai has a rare ability to quickly understand both the product, the tone, and the visual expression we want to communicate.

His eye for graphic aesthetics and photographic detail has given us a strong visual foundation to build upon — in fact, he nailed the concept on his very first attempt. That says a lot about his ability to interpret a brief and translate it into something that feels authentic and right.

We’re excited to continue our collaboration with Nicolai and see how far we can take MASS’s visual identity together. He is professional, creative, and incredibly easy to work with — and we highly recommend him to anyone looking for a strong graphic and photographic expression.

Lise Von Seelen
Founder - Mass

Joseph // Payséan


NICKLAS STRATEN // UNIQUE MODELS


Black Milk // Magazine


Towel X Emilia


Beosound // A5


CC X EMMA


Beoplay // HX


Ænergy // Jysk Energi


RØGEN DESIGNS