A fitness product for trainers and clients has to support two connected but different experiences. Trainers need practical tools for managing people, plans, and progress. Clients need a clear, motivating way to follow workouts, manage diet plans, and record their journey.
Desisle designed a web and mobile fitness application from the ground up, focusing on a user experience that could support both sides of that relationship without making either experience feel overloaded. The project covered product UI/UX design and was completed in collaboration with two stakeholders.
Project Overview
Industry: Health and fitness
Product: Web and mobile fitness application
Users: Trainers and clients
Services: UI/UX design
Role: UI/UX Designer
Team: One UI/UX designer and two stakeholders
Project period: 2020-2021
What Did Desisle Do?
Desisle designed a fitness application for trainers and clients, starting with research into established fitness-product patterns and workflows. The work focused on an intuitive interface for managing client activity, diet plans, workout plans, progress logs, and trainer-client interactions across web and mobile experiences.
The Product Challenge
The product began without an existing interface or established experience to improve. That meant the early work needed to define the product’s core flows, navigation, visual direction, and interaction approach rather than simply redesigning individual screens.
The central challenge was balancing two needs within one platform. Trainers needed a structured way to manage client information and fitness plans, while clients needed an approachable experience for understanding and completing the actions that supported their fitness journey.
Designing for Two User Groups
The product was designed around connected trainer and client journeys. For trainers, the interface needed to make it easier to organise client relationships and deliver plans. For clients, the experience needed to make workouts, diet guidance, and progress logging understandable without requiring high technical confidence.
The key design principle was simplicity. Instead of adding visual complexity in the name of feature depth, the experience focused on clearer navigation, readable task flows, and modern UI patterns that could help users complete common actions with confidence.
Research and Product Foundations
Before shaping the interface, the work included research into fitness applications, with attention to common workflows, user flows, and branding approaches in the fitness market. This research informed the foundations of the product experience: what information trainers and clients were likely to need, how related actions could be grouped, and how visual design could support motivation without getting in the way of practical tasks.
Key UX Decisions
Keep Trainer and Client Needs Distinct
Problem: Trainers and clients use a fitness platform for different reasons and have different tasks to complete.
Decision: Design the experience around role-relevant tools and journeys rather than presenting the same interface to every user.
Why: Trainers need management-oriented functionality, while clients need guidance and progress visibility.
Trade-off: The product required more careful information organisation to avoid fragmenting the overall platform experience.
Prioritise Clarity Over Interface Density
Problem: Fitness platforms can become difficult to use when workout plans, diet content, logs, and communication features compete for attention.
Decision: Use intuitive navigation, clear task paths, and a clean visual hierarchy.
Why: The product needed to remain usable for people across age groups and technical confidence levels.
Trade-off: Simplicity required deliberate decisions about which information should be visible first and which should appear later in a journey.
The Designed Experience
The resulting product design brought together the functions needed to support a fitness journey, including trainer-side client-management tools, workout and diet-plan experiences, progress and workout logging, trainer-client interaction features, and modern visual components and dynamic imagery intended to make the experience more engaging.
The work focused on producing a cohesive, user-friendly interface rather than treating functionality and aesthetics as separate concerns.
Outcome
The project delivered a clean, modern fitness application design that supported both trainers and clients. The stated qualitative outcomes were an intuitive interface, integration of core fitness-management features, and positive stakeholder feedback regarding usability and the engaging visual experience.
Post-launch product metrics were not provided for this case study. Desisle is therefore not attributing conversion, engagement, retention, revenue, or operational improvements to the design work.
What We Learned
Designing a fitness application from zero reinforced that a visually engaging product still needs a disciplined functional structure. The most useful design decisions came from understanding how trainers and clients approach the same fitness journey from different perspectives.
For products with multiple user groups, the interface should not merely look consistent. It should make each user’s next action clear while preserving a coherent relationship between the two sides of the platform.
Similar Product Problems
This type of approach is relevant for health, wellness, coaching, and membership platforms where one user manages or guides another. Common product challenges include balancing administrative workflows with a simple end-user experience, organising plans and progress data, and designing role-specific journeys without splitting the product into disconnected systems.
Need Help With a Similar Product?
Building a fitness, wellness, or coaching platform with multiple user roles requires more than attractive screens. The product needs a clear structure for each user’s goals, tasks, and information needs.
Explore Desisle’s current product-design services to assess whether its mobile app, UX, or product-design support fits the stage and complexity of the product.
FAQ
What services did Desisle provide for this fitness product?
The verified scope was UI/UX design for a web and mobile fitness application, including interface concepts and user-focused product flows.
Who was the fitness application designed for?
The product was designed for trainers who manage clients and clients who follow fitness journeys, diet plans, workout plans, and progress logs.
Was the app designed from an existing product?
No. The supplied project information states that the product design began without prior design groundwork.
Did Desisle conduct user research?
The supplied evidence supports market and workflow research into existing fitness applications. It does not confirm interviews, usability testing, analytics analysis, or other research methods, so those should not be claimed.
Are there verified post-launch performance metrics?
No verified post-launch metrics were supplied for publication, so the case study should not claim measurable improvements in retention, revenue, time savings, or engagement.