Perry Sweitzer Portfolio

Reducing Workout Logging Friction

Reps

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

Reps workout logging interface

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 spend 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

Turning research into design direction

Reps is an example of how I blend UX research and rapid, iterative design. I used secondary research from Reddit threads and YouTube app reviews, plus personal testing of the main fitness apps on the market, to better understand user needs and pain points. After cataloguing recurring issues, I synthesized them into one core problem: users were frustrated by how often they had to interact with their phone during workouts. That insight became clear when many Reddit commenters said their preferred workout tracker was still pen and paper.

Set logging screen showing 3-tap workflow

3 Tap Set Logging

Dashboard with quick start and saved templates

Quick Start flow

AI trainer chat screen for the fitness app

In-app coaching

Personal record feed showing latest milestones

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