Building on the storyboard, I created 2 user flows that map key journeys within the app, with one focused on short-term tracking, the other on long-term motivation. Each flow included a happy path and an alternative/unhappy path to consider and design for various user scenarios. 

• Flow 1 covers the task of logging a completed run and optionally sharing their progress with the app community

• Flow 2 follows the process of setting a new running goal and selecting a reward from a selection based on user preferences.

Together, these 2 flows capture different but interconnected aspects of the user journey, helping ensure a seamless experience that meets diverse needs and fosters lasting engagement. 

Using Crazy 8's method, I created a range of low-fidelity wireframes that explored multiple design ideas for each step in the activity-tracking experience, and conducted a competitor analysis for inspiration and gaps in the market.

Using hand sketches and Figma, I generated clear variations of the core experience from; homepage → personalised goal setting → activity logging → goal history → rewards → social community. 

These wireframes brought to life the key new features of a supportive social community and personalised rewards, while also ensuring users could customise their experience, track/view holistic health information, set flexible and personal goals, and receive clear, actionable feedback throughout the app. 

I translated my low-fi wireframes into an interactive mid-fidelity prototype, focusing not just on refining functionality but on designing with empathy and purpose. 

Every design decision aimed to help users achieve their goals with ease and enjoyment, while accommodating diverse needs and preferences. To support this, I created an accessibility checklist based on WCAG guidelines and applied psychology principles, cognitive models and interaction design to ensure an intuitive, inclusive experience. 

This step was crucial in preparing for usability testing, ensuring the design was clear, engaging, and ready for meaningful user feedback. 

I saw a negative correlation between time on task and ease of use - i.e. the longer tasks felt more difficult;

• Tasks like accepting dynamic goal suggestions, selecting rewards, and posting in the community were quick, suggesting these flows are intuitive.

• The other tasks took a bit longer likely due to minor usability issues. However, most of these could be quickly fixed and retested

• A critical issue was the concept of setting reward preferences, with users spending too long or not even completing the task. But since this feature is very unique and marketable, correcting this flow and showcasing it effectively became my top priority.

Other lower priority issues mentioned in qualitative feedback were documented in a product backlog for the future. The prototype was reiterated to integrate the high priority feedback and address critical user pain points, ensuring a user-centered design;

My work on the HabitHero redesign had meaningful impact on both user experience and business value, by transforming research insights into thoughtful, accessible, and strategically aligned UI solutions. By integrating key user needs—like personalisation, motivation, and social connection—into core features, I created designs that support long-term engagement and thus healthy behaviours. This directly supports key north star metrics like increasing MAU, acquisition, and retention, helping PrimeCare grow its user base while staying true to its mission of empowering healthier lives.

Given more time, I would conduct another round of usability testing with the high-fidelity prototype to validate design changes and assess the visual and functional experience as a whole - ensuring continuous optimisation. Despite this, this project strengthened my end-to-end product thinking, deepened my understanding of interaction and accessibility design, and developed my ability to clearly communicate and collaborate with both users and cross-functional teams.