Exercise Swaps

A just-in-time feature that lets clients swap out painful, inconvenient, or unmotivating exercises - reducing friction, saving trainer time, and keeping workouts on track.

iOS & Android

Trainwell

Finished in 1 month

www.trainwell.net

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

iOS & Android

Trainwell

Finished in 1 month

www.trainwell.net

Impact


Improved workout continuity reduced user churn by 4%. Trainer hours dropped by 780/mo, saving ~$46K monthly.

TRAINER HOURS SAVED

TRAINER HOURS SAVED

TRAINER HOURS SAVED

780/mo

780/mo

CHURN RATE REDUCED

CHURN RATE REDUCED

CHURN RATE REDUCED

4%

4%

Operational $ Saved

Operational $ Saved

Operational $ Saved

$46k/mo

$46k/mo

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

Profile images have been changed to respect user privacy.

Profile images have been changed to respect user privacy.

Profile images have been changed to respect user privacy.

My Contribution


I owned the design process end-to-end.

Behavior and Usage Analysis

Analyzed 1000+ workout logs, slack tickets, swap frequency, and trainer intervention patterns.

Behavior and Usage Analysis

Analyzed 1000+ workout logs, slack tickets, swap frequency, and trainer intervention patterns.

Behavior and Usage Analysis

Analyzed 1000+ workout logs, slack tickets, swap frequency, and trainer intervention patterns.

Designing Swap Logic and Guardrails

Defined rules for exercise alternatives, covering equipment constraints, movement patterns, and trainer intent.

Designing Swap Logic and Guardrails

Defined rules for exercise alternatives, covering equipment constraints, movement patterns, and trainer intent.

Designing Swap Logic and Guardrails

Defined rules for exercise alternatives, covering equipment constraints, movement patterns, and trainer intent.

Rapid Prototyping

Iterated on high fidelity prototypes to validate swap flows, interaction states, and logic before engineering.

Rapid Prototyping

Iterated on high fidelity prototypes to validate swap flows, interaction states, and logic before engineering.

Rapid Prototyping

Iterated on high fidelity prototypes to validate swap flows, interaction states, and logic before engineering.

Shipping With Constraints

Worked closely with 2 engineers and PM to ship a scalable solution within technical & operational constraints.

Shipping With Constraints

Worked closely with 2 engineers and PM to ship a scalable solution within technical & operational constraints.

Shipping With Constraints

Worked closely with 2 engineers and PM to ship a scalable solution within technical & operational constraints.

Protected under NDA

I can only share a glimpse of my work currently. Interested in working together or curious to know more about the process? Feel free to reach out for a detailed walkthrough.

Protected under NDA

I can only share a glimpse of my work currently. Interested in working together or curious to know more about the process? Feel free to reach out for a detailed walkthrough.

Protected under NDA

I can only share a glimpse of my work currently. Interested in working together or curious to know more about the process?

Feel free to reach out for a detailed walkthrough.

Open to Senior / Founding Product Design Roles

Made with Framer & Cold Brew.

Exercise Swaps

A just-in-time feature that lets clients swap out painful, inconvenient, or unmotivating exercises - reducing friction, saving trainer time, and keeping workouts on track.

iOS & Android

Trainwell

Finished in 1 month

www.trainwell.net

Open to Senior / Founding Product Design Roles

Open to Senior / Founding Product Design Roles

Made with Framer & Cold Brew.

Made with Framer & Cold Brew.

Exercise Swaps

A just-in-time feature that lets clients swap out painful, inconvenient, or unmotivating exercises - reducing friction, saving trainer time, and keeping workouts on track.

iOS & Android

Trainwell

Finished in 1 month

www.trainwell.net

Open to Senior / Founding Product Design Roles

Open to Senior / Founding Product Design Roles

Made with Framer & Cold Brew.

Made with Framer & Cold Brew.