Clearblue Connected — Fertility Tracking App
Healthtech · iOS/Android · Freelance Product Designer · Sept 2016 – Sept 2017
My role
Sole product designer — end-to-end ownership of UX and UI across iOS and Android for one year. Working directly with product managers, hardware engineers, scientists, and the clinical trials team.
The problem to solve
Women trying to conceive needed clinically accurate fertility predictions — but the experience had to feel warm and human, not medical and intimidating.
The technical complexity was significant: Bluetooth pairing, real-time data sync, offline states, a clinical prediction algorithm, and a physical hardware device — all invisible to the user.
What I designed
1. Bluetooth pairing flow
Guided users through a hardware interaction they'd never done before — using clear step-by-step instructions and reassuring feedback states. Solved challenges around offline functionality, data synchronisation, and hardware-software integration.
Skills: interaction design, hardware-software UX, error state design
2. Daily home screen
One clear message per day: what does today mean for my chances of conceiving? The circular visualisation communicated cycle position, fertility status, and urgency — without requiring users to understand the science behind it.
Skills: data visualisation, information architecture, emotional design
3. Fertility prediction — made human
Collaborated with scientists on the prediction algorithm to translate clinical logic into plain, everyday language. Cycle data accumulated over time, predictions refined, and personalised recommendations surfaced naturally.
Skills: working with clinical data, content design, personalisation UX
4. Full user journey
Designed every screen from onboarding through daily tracking, test day reminders, cycle history, and calendar views — maintaining consistency and warmth across the full experience.
Skills: end-to-end UX, iOS and Android design, design system consistency
Research and Validation
Participated in clinical trials with 100+ users — observing real behaviour, identifying friction points, and iterating on designs based on findings. Presented research findings to the P&G marketing team in Switzerland.
Skills: user research, usability testing, stakeholder presentation
The outcome
Shipped on iOS and Android. Some of the 100+ trial users successfully conceived using the product.