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IMMUNIFY
Immune Tracking App

Immune health tracking and literacy app

Challenge

The Problem

Immune health is a critical yet largely invisible aspect of everyday wellbeing. While people increasingly use apps and wearables to track steps, sleep, and heart rate, immune health remains difficult to understand, monitor, and act upon. Interviews revealed that most participants valued immunity but lacked clear knowledge of what “good immune health” looked like, often relying on vague advice, intuition, or fragmented online information. Existing health apps either ignored immunity altogether or presented complex biometrics without sufficient explanation, context, or guidance. This created a gap between data availability and meaningful understanding, leaving users unable to translate health information into preventative action. In a post COVID context, this lack of immune literacy and accessible tracking posed both personal and systemic challenges, particularly for individuals managing fatigue, stress, or recurring illness.

My Role

I worked as a UX designer within a multidisciplinary team, contributing to research synthesis, concept development, interaction design, and iterative prototyping. My focus was on translating complex immune health concepts into accessible, user centred experiences. I conducted and analysed interviews with health professionals and everyday users, identifying recurring needs around clarity, trust, and actionable guidance. I also contributed to early design concepts and critique, supported usability testing, and helped refine Immunify’s information architecture and interaction patterns based on user feedback. Throughout the project, I advocated for simplicity, plain language, and designing for health literacy rather than raw data exposure.
Process

Design Process

We began by framing immune health as a complex, networked problem domain involving individuals, health professionals, wearables, institutions, and misinformation sources. A rich picture was developed to visualise these relationships, highlighting fragmented data flows, trust gaps, and the emotional burden placed on users navigating health information. Primary research included interviews with healthy individuals, immunocompromised participants, and healthcare practitioners. These revealed consistent themes: users preferred holistic views of health, struggled with medical jargon, and wanted guidance that felt achievable within daily routines. Importantly, participants expressed frustration with apps that surfaced metrics without explaining why they mattered or how to improve them.

Using these insights, our team explored multiple speculative concepts before converging on Immunify as the strongest foundation. Early prototypes were tested comparatively, revealing a clear preference for designs that balanced overview with clarity and avoided cognitive overload. Iterative testing highlighted the importance of visual signifiers such as colour coding, progress indicators, and plain language summaries. Usability evaluations, including SUS testing, showed strong ease of use but also surfaced critical learnings around information scent and contextual guidance. In response, we refined Immunify to better integrate insights and tips directly alongside metrics, reinforcing the connection between behaviour and outcomes. This iterative loop ensured the design evolved from simply tracking immune health to actively supporting understanding and prevention.
Results

The Solution

Immunify is a mobile app that reframes immune health tracking as a learning and prevention experience rather than a diagnostic tool. It aggregates immune related indicators, lifestyle factors, and wearable data into a single, intuitive dashboard. Complex metrics are translated into clear visual states using colour and simple language, allowing users to quickly understand their immune readiness at a glance. The core value lies in actionable guidance: Immunify provides concise, evidence based tips tailored to each metric, helping users understand what they can realistically do to support their immune health. By embedding education within everyday interactions, the app builds immune literacy while remaining approachable, supportive, and non clinical.

Designing Immunify reinforced the importance of designing for understanding, not just usability. While the interface tested strongly, the deeper challenge lay in helping users make sense of invisible bodily processes without creating anxiety or false certainty. This project sharpened my ability to work within complex health domains, balancing simplification with responsibility. I learned that effective health UX depends as much on trust, context, and feedback as it does on clean visuals or navigation. Immunify demonstrated how thoughtful design can shift health tracking from passive monitoring to empowered, preventative engagement, a lesson I will carry into future work in digital health and beyond.

For more details regarding this project such as figma files etc. please contact me at miaicasey1971@gmail.com  

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