Sadie Active: Fitness app redesign

Role

Product Designer

Team

2 designers

5 developers

1 project manager

1 QA

Timeline

Oct 2023 - Feb 2024

Redesigned a mobile fitness app for an Instagram fitness influencer (200K+ followers). Led the UX/UI for the progress dashboard and workout programs, designed an admin platform for managing in-app content, and built a scalable design system to support future growth.

Problem

The original app felt dated and unintuitive: cluttered workout screens, inconsistent navigation, and friction completing sessions. Users complained about the workout execution experience (hard to follow steps, video/rep timing confusion, poor readability), leading to lower engagement and negative feedback. The fitness trainer also lacked an efficient web interface to upload/manage workouts. We undertook a full redesign to modernize the experience, streamline completing a workout, and create a scalable content management admin.

My role

Conducted competitor analysis
Developed user flows
Designed mobile and tablet UI
Identified edge cases and corner scenarios
Designed the admin web interface
Prepared design handoff for development
Reviewed implementation to ensure design consistency
Built and maintained the design system

Workouts and statistics

Turned a cluttered home screen into a simple weekly hub - users can instantly see progress, jump into the next workout, and review what they've done.

before

after

Workouts page: before and after redesign

Redesigned Profile into a Dashboard that shows weekly stats, a quick training report link, macro summary, and recent workout history - so users can check progress and jump to core actions faster.

before

after

Dashboard page: before and after redesign

Programs

Long-term programs turn single workouts into clear 4-, 8-, or 12-week roadmaps. Each plan auto-slots sessions onto the right days. Also there is a live progress bar and a "Next workout" jump-in in case if user has active program.

Programs hub with active plan progress and quick access to all available programs.

Created a Program detail view that turns workouts into a weekly plan: users see the program level, duration, and equipment, track week-by-week progress, and jump straight to the Next workout.

Program detail view with level, duration, equipment, and weekly progress.

Macronutrients calculator

We aimed to make workout execution clearer and more focused, cut navigation friction so users reach programs and sessions faster, unify UI through a reusable cross-platform design system.

Step-by-step macro setup with a simple, visual breakdown of daily targets.

Web platform for admin