Interaction Design · AI-Powered Product · Behavioral Design
FlexFit: Fitness that listens to your body.
FlexFit is an adaptive fitness system for people with irregular schedules. It adjusts workout recommendations based on changing time, energy, recovery, and personal goals, helping users stay consistent without relying on rigid routines.
Timeline
Jan 2025 -
Aug 2026
TEAM
Atisha Kudesia
Fiona Szeto
Ziheng Xu
Role
Product designer
Industrial designer
tOOLS
Figma
Rhino
Arduino
problems
Fitness assumes your day is predictable.
Most fitness products are built around fixed schedules and consistent routines. But lives usually don’t follow fixed plans. This problem is more obvious for those whose time is fragmented like the shift workers. Research has shown that shift workers are less likely to meet recommended physical acitivity.
1%
1%
less likely
Interview
Fitness becomes a negotiation between schedule and capacity.
Interviews revealed two recurring tensions: constantly deciding how to adapt a workout, and the mismatch between what the schedule allows and what the body can actually handle.
Faye
“By the time I finally sat down, I just didn’t have the energy to decide what workout to do. Even choosing between options felt like too much.”
Mira
“When I’m called to the clinic, my plans are thrown off. I know my body needs movement, but I don’t know if it still works to go to the gym.”
Design & iteration
#1. Smart Plan Adjustment
Interviews revealed two recurring tensions: constantly deciding how to adapt a workout, and the mismatch between what the schedule allows and what the body can actually handle.
Faye
“By the time I finally sat down, I just didn’t have the energy to decide what workout to do. Even choosing between options felt like too much.”
Mira
“When I’m called to the clinic, my plans are thrown off. I know my body needs movement, but I don’t know if it still works to go to the gym.”
Results
Here, the outcomes and achievements of the project are highlighted, including user feedback, adoption rates, and industry recognition.
User engagement
Increased session duration by 25% due to improved navigation and playlist management features
Conversion rates
Blues saw a 15% increase in premium subscriptions following the redesign, thanks to a clearer call to action and streamlined onboarding process.
Growing User Base
The app quickly gained traction among individuals and businesses worldwide, with a steady increase in user adoption and engagement.