Rebrand & App to help young adults manage the urge to self harm
Calm Harm is a free, evidence-based mobile app developed with stem4 and the NHS to help young people manage and resist the urge to self-harm. As Lead Designer, I led the full UX and visual design process, from clinical co-creation workshops with teenagers and clinicians through to a polished, ORCHA-approved product now used in over 171 countries.
A calm, distraction-based UI built around five activity categories, each designed to help users ride out the urge to self-harm.
Calm Harm has received widespread recognition across health, design, and digital sectors.
Co-creation sessions with teenagers, parents, teachers, and clinicians shaped every design and interaction decision.
A full visual rebrand took the app from functional to something teenagers actually wanted to open.
Rapid wireframes evolved into polished, clinically reviewed screens tested with real users throughout.
Fast ideation sessions generated a wide range of concepts before narrowing down to the most effective flows.
A new visual identity built around calm, trust, and anonymity, designed to feel safe for a teenage audience.
Calm Harm is a free, evidence-based app developed with stem4 – the UK's leading digital teenage mental health charity – to help young people manage and resist the urge to self-harm. Built on Dialectical Behaviour Therapy (DBT) principles and developed in partnership with the NHS Digital Development Lab, the app has become one of the most widely adopted mental health tools for young people globally.
The core design challenge was balancing clinical rigour with complete user anonymity – a non-negotiable for a teenage audience hesitant to seek traditional help. The app had to feel discreet, non-clinical, and calming while simultaneously collecting anonymised aggregate data to evidence effectiveness for NHS stakeholders.
Five activity categories – Comfort, Distract, Express Yourself, Release, and Random – were developed with clinical input to guide users through "riding the wave" of an urge. A built-in breathing exercise provides immediate mindfulness support. Every visual and interaction decision was tested against the primary question: would a teenager feel safe using this?
The redesign was commissioned as part of NHS England's Digital Development Lab programme. A rigorous co-creation process brought together stem4, young people, parents, teachers, clinicians, and clinical safety officers to carry out a strategic review and co-produce the product roadmap.
A series of user engagement sessions with teenagers examined desired outcomes, user journeys, visual concepts, and security considerations. The project then underwent a clinical safety review with mHabitat before approval by ORCHA – the Organisation for the Review of Care and Health Apps.
The app has received widespread critical acclaim, winning multiple major design and charity sector awards. It is one of only 18 mental health apps included in the NHS Apps Library, and its founder Dr. Nihara Krause was awarded an MBE for services to the mental health of young people.