Digital health applications refer to software-based tools and platforms that leverage digital technologies to support healthcare delivery, health management, and patient engagement. These applications include mobile health apps, telemedicine platforms, wearable device integrations, electronic health records, and AI-driven diagnostic tools. They function across a spectrum ranging from preventive care and wellness tracking to clinical decision support and chronic disease management. With the proliferation of smartphones, internet connectivity, and data analytics, digital health applications have become central to modern healthcare systems, addressing challenges such as accessibility, cost, and quality of care. A defining feature of digital health applications is their ability to collect, process, and utilize real-time health data. For instance, wearable devices can monitor vital signs such as heart rate, physical activity, and sleep patterns, which are then analyzed by applications to provide actionable insights. Telemedicine applications enable remote consultations, reducing geographical barriers and improving access to healthcare services, especially in underserved areas. Additionally, digital therapeutics deliver evidence-based interventions through software programs to prevent, manage, or treat medical conditions. These applications contribute to personalized medicine by tailoring recommendations based on individual health profiles, thereby enhancing treatment outcomes. In the context of healthcare management, digital health applications help optimize resource allocation, improve operational efficiency, and enhance patient satisfaction. They facilitate better coordination among healthcare providers, reduce administrative burdens, and support data-driven decision-making. However, the success of these applications depends significantly on their usability, accessibility, and alignment with users’ needs, which brings into focus the importance of user-centred design in health app development. User-centred design is an approach that prioritizes the needs, preferences, and limitations of end users throughout the development process. In healthcare, users include patients, caregivers, healthcare professionals, and administrators, each with distinct requirements and levels of technological proficiency. The goal of user-centred design is to create applications that are intuitive, effective, and meaningful, thereby ensuring higher adoption rates and better health