UX Case Study

Reps

An AI-native fitness tracker with a clean, intuitive UI that stays out of your way without missing a rep.

Challenge

Most fitness apps overload users with lengthy setups, unnecessary taps during logging, and cluttered interfaces. The challenge was to reduce tap-heavy flows and create an intuitive UI that stayed out of the user's way.

Solution

I designed Reps to make logging effortless while bringing in tools users usually leave the app to access, like chat-based AI coaching and YouTube form videos.

Results

The result was a faster, cleaner workout flow, so users spent less time on their phones and more time training.

Logging your workout should not be a heavy lift. Secondary research revealed that gym-goers were frustrated with high-friction fitness trackers, including lengthy setups, 5+ tap set logging, repetitive entries, and leaving the app for other commonly used tools. Reps was designed for lifters who want to train, not wrestle with their tracking app. From quick-start routines to simplified set logging, every interaction was designed to reduce friction. To keep users in flow, I embedded tools they usually open elsewhere, including chat-based AI guidance and YouTube form support. The outcome is a clean, intuitive experience that keeps attention on performance, not interface management.

Demo the app

Research and Iterative Design

From research to product direction

Reps is an example of how I blend UX research with rapid, iterative design. I started with secondary research across Reddit discussions, YouTube app reviews, and hands-on testing of the leading fitness apps to understand real user needs and pain points. After cataloging recurring issues, one core problem stood out: users were frustrated by how often they had to interact with their phones during workouts. That insight became especially clear in Reddit threads where many lifters said their favorite workout “app” was still pen and paper. This shaped the core design direction for Reps: reduce interaction friction and keep users focused on training.

Quick Start home screen for the fitness app — Quick Start flow

Workout logging screen for the fitness app — Workout logging

AI trainer chat screen for the fitness app — In-app coaching