Overview
Designing exercise swaps to help users adapt workouts and reduce trainer overhead.
Trainwell is a fitness platform that pairs users with real personal trainers and adaptive workout plans. It is designed for accountability, flexibility, and lasting results.
The exercise swaps feature lets users replace exercises mid-workout when something didn’t feel right, like discomfort, missing equipment, or lack of motivation, while keeping trainers informed. This helped users stay on track and reduced friction in their workouts.
Role
IC Product Designer - User Research, Prototyping
Team
1 Product Manager, 2 Developers, 2 Trainers
Timeline & Status
1 Month & Feature is live on the product
Impact
Improved workout continuity reduced user churn by 4%. Trainer hours dropped by 780/mo, saving ~$46K monthly.
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Demo
A glimpse into intuitive in-workout exercise swaps in action.
iOS Mobile App
Android Mobile App
User Impact
Results that trainers and users could feel.
Earlier, users would message me asking to change an exercise, and I’d usually adjust it for the next workout. That back and forth took time. With exercise swaps, users can choose an alternative while they’re working out, and the recommendations still make sense.

Devyn
Trainer since 2022
There were days when an exercise didn’t feel right, or I didn’t have the equipment. Being able to swap it in the moment kept me moving instead of stopping or skipping the workout. The alternatives felt thoughtful and close to what my trainer would suggest.

Kate
User since 2023


