UX CASE STUDY

FitJourney

An integrated fitness app that adapts workouts to a woman's menstrual cycle, mood and sleep — turning casual users into long-term members.

ROLEUX Research · UI/UX Design

TIMELINE5 Days (Sprint Week)

TEAMGroup project

SKILLSResearch, Wireframing, Prototyping

01 The Challenge

Users abandon fitness apps quickly due to complexity and lack of personalization. Women in particular need workouts that adapt to their stress and mood — but most apps offer one-size-fits-all, goal-only frameworks.

72%Quit within 3 monthsUsers abandon fitness apps quickly due to complexity and lack of personalization.

3×More engagementHabit-based designs show 3× better retention than goal-only frameworks.

4 minsDecision windowUsers decide within 4 minutes whether an app is worth their time.

5★Target experienceA seamless onboarding that converts casual users into long-term members.

02 Overview

FitJourney is an integrated fitness app feature that leverages data from a period tracker, mood and sleep tracking to deliver personalized, cycle-aware workouts — helping women achieve a balanced approach to their health during different days of their menstrual cycle.

03 Design Process

A double-diamond approach over a 5-day sprint — diverging to explore the problem and solution space, then converging on a validated, buildable feature.

01DiscoverStakeholder interviews and secondary research on the women's fitness market and retention gaps.

02DefineSynthesised findings into a sharp problem statement and competitor analysis.

03DevelopIdeation, user flows, low-fidelity wireframes and a design system.

04DeliverHigh-fidelity screens, prototyping and testing with peers and the product team.

04 Meet the User

05 Predicted Outcomes & KPIs

User retention ratePercentage of users who keep using the app after 3 weeks, 1 month and 3 months.

Daily Active Users & Workout CompletionHow many users log in daily, and the share who complete their workouts.

Participation in ChallengesNumber of users who join daily challenges and share their progress via the app.

User Acquisition rateThe number of users who download and join the application on their own or through referrals.

06 Low-Fidelity Prototypes

Before committing to visuals, we sketched the core flows as low-fidelity wireframes — pressure-testing structure and navigation with the team before investing in UI.

07 High-Fidelity Screens

High-fidelity screens spanning the full journey — onboarding, a personalized dashboard, a customisable workout planner, explore, and daily progress.

08 Learnings & Next Steps

Our biggest takeaway was that seamless design and technical feasibility have to move together — the most elegant flow still has to be buildable within the sprint's constraints.

Data visualizations

Backend event logs can power graphs and cycle visualizations for the user.

Handling missing data

Adapt to incomplete inputs and still generate useful recommendations.

Offline access

Include offline content for gyms and outdoor environments.