Difference by design

UX Delta - User experience strategy, design and prototyping.

Hello, my name is Revi K├Ârnmann, UX/UI designer with 20 years of experience in a wide variety of industries. I gather insights, map out customer journeys, build prototypes and validate with users to explore strategic directions and deliver a scalable product vision.

Featured projects



  • Strategic UX design by rapid prototyping and customer validation
  • Mobile-first, ready to build UI design for responsive web, iOS and Android
  • Cross-platform Design System documentation
  • A/B test design proposals for Conversion Rate Optimisation
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