Chiron
A fitness companion that turns personal goals into a realistic daily plan.
Chiron brings workouts, meal guidance, scheduling, and progress into one connected experience. Our team designed it for people who want more direction than a content library, but need something more flexible than a personal coach.
As Lead UI Designer, I focused on translating the team's research and early ideas into a consistent interface across onboarding, workouts, nutrition, scheduling, and progress.
The problem wasn't a lack of fitness content.
Fitness apps already offer large libraries of workouts, food trackers, schedules, and progress charts. People still have to decide which workout fits their goals, how to make time for it, what to eat alongside it, and whether their routine is working.
What six interviews and our survey helped us understand.
We started by talking to people about how fitness fit into their daily lives. Our team ran six user interviews and sent out a survey to learn how people plan their diet and workout routines.
The research showed us that motivation was not the only issue. People also needed help fitting exercise and food choices into the rest of their lives.
Giving the problem a real person and routine.
"A healthy body and mind starts with great habits."
Anthony believes in maintaining a healthy lifestyle and physique. Exercise gives him a way to relieve stress from his busy work schedule. He tries to visit the gym at least three times a week and works out from home when the gym is not an option.
Anthony helped us focus on a user who wanted structure, but whose schedule made rigid plans difficult to maintain.
How might workouts and nutrition work as one plan?
How might we help busy people turn their goals, schedule, fitness level, and food preferences into a workout and nutrition routine they can realistically follow?
Our first version was much more basic.
Before polishing anything, we sketched the main pieces in low fidelity — sign-up, a survey, a workout library, and separate scheduling and diet screens.
The early wireframes gave us the main pieces, but they still behaved like separate tools. The survey collected information, workouts lived in a library, and diet had its own section. The next step was deciding how these pieces could work together.
From separate features to one daily experience.
As we developed the idea, we began connecting the pieces into one plan. Four changes moved the product from a set of tools to a single daily experience.
The early survey placed many unrelated questions together. The final design separates goals, experience, schedule, equipment, and nutrition into shorter steps.
The early version asked people to browse workout programs. The final Today screen recommends a workout based on the information collected during onboarding.
The early version treated exercise and food as two neighboring areas. The final design connects workout demands with meal and macro guidance.
The original schedule screen listed calories, steps, and placeholder statistics. The final progress screen adds a plain-language insight to explain what changed and what the user should do next.
Breaking one long survey into decisions people can answer.
A welcome screen, then six short question steps, then one personalized plan. Each step asks for one kind of decision.
One screen answers: what should I do today?
Today pulls the plan together in one place: the day's focus, one recommended workout, an exercise preview, a nutrition target, the next meal, hydration, and weekly consistency.
Making the next workout easy to understand and start.
From Today to workout details to the exercise sequence to start — each screen answers a question that would otherwise become a reason not to begin.
The goal was to remove the small questions that often become reasons not to begin.
Meal guidance that supports the workout plan.
Meals are selected to support the same goals as the workout plan. Calories and macros stay visible, and users can open recipes, adjust servings, complete a meal, or swap one.
Progress should explain what the numbers mean.
The screen opens with a short written insight, then the evidence: workout consistency, active minutes, adherence, weight trend, weekly training volume, personal records, and a goal forecast.
Leading the interface design within a four-person team.
Chiron was created by a four-person team. My role was Lead UI Designer. I focused on shaping the visual direction and helping the product feel consistent across onboarding, workouts, nutrition, scheduling, and progress. We used Miro to organize ideas and Figma to design and develop the interface.
What I learned from designing Chiron.
Research changed the problem. We began with workout and diet features, but the interviews showed that time, consistency, and decision-making were just as important.
Personalization requires clear questions. The quality of the plan depended on asking for goals, experience, schedule, equipment, and food preferences in a way that did not feel overwhelming.
Fitness and nutrition made more sense together. Treating them as one daily experience created a clearer reason for the product to exist.
UI consistency mattered across a large flow. As Lead UI Designer, I learned how important it was to make onboarding, recommendations, tracking, and planning feel like parts of the same product.