FitLex
A mobile fitness app with personalized workouts, nutrition plans and progress tracking for steps, sleep, water and heart rate, plus a content feed and a premium subscription.
Fitness & Health
Industry
2024
Year of release
FitLex
Client
Project goal
Build the Fitlex mobile app to give users accessible, personalized fitness solutions, including workouts, nutrition plans and progress-tracking features. The core challenge was to create a convenient, intuitive interface where users can easily choose and follow training programs, monitor their results and stay motivated on the way to their fitness and health goals.
About the client
FitLex is a fitness brand that makes personalized training and healthy nutrition accessible through a mobile app. The product is built for people who want to get in shape without a personal trainer or complicated programs.
What we did
Features
#01 PERSONALIZED WORKOUTS
Programs are matched to the user's goal and level: stretching, lower-body, strength and cardio. Every exercise comes with a video and a timer.
#02 NUTRITION PLANS
A nutrition section with meal categories and recipes that complement the training program and help keep the diet on track.
#03 PROGRESS TRACKING
A daily summary report: steps, sleep, water, heart rate and goal completion shown on clear rings and charts.
#04 FEED AND CHALLENGES
A feed with workouts and motivational content, plus fitness challenges that keep users engaged and help them stick with training.
#05 PREMIUM SUBSCRIPTION
Core features are free, while advanced programs and plans unlock with a subscription. Upgrading to premium takes one tap from the profile.
Development process details
We built the product iteratively, moving from prototype to release-ready app:
- UX research and prototyping: user journey mapping, a quick onboarding with goal selection, and prototype testing with real users.
- Design and mobile development: a unified design system, workout and nutrition plan screens, summary reports with heart-rate charts and progress rings, and a personal profile.
- Integrations and testing: health data from the smartphone, payments and the premium subscription, a video content feed, QA and preparation for App Store release.
Design and interface
The interface plays a deep dark background against a bright lime accent that highlights buttons, workout tags and key metrics, while the dark theme reduces eye strain during training. The summary report is composed of compact cards — progress rings, a heart-rate chart, goals, water and sleep — so the day's status can be read in seconds. Workout and nutrition sections use soft pastel cards and large photography, and exercise videos run as full-width blocks so users instantly see what's ahead.
Unique solutions and innovations
Personalization from the first launch
A short onboarding that captures goals and fitness level generates an individual training and nutrition program, so users get a ready plan right away instead of an empty screen.
A single health dashboard
Steps, sleep, water, heart rate and goals live in one report with progress rings, so there's no need to jump between sections to see how the day went.
A dark interface built for training
The dark theme with lime accents stays readable at the gym or at home in any lighting, and large controls are easy to tap mid-exercise.
A freemium model with a smooth upgrade
Premium features are woven into everyday flows: users see the value of the subscription in the context of their workouts rather than on a separate paywall screen.
Benefits for business and users
HIGHER ENGAGEMENT
Personalized programs, progress reports and challenges bring users back every day and keep them around for the long term.
RECURRING REVENUE
The premium subscription delivers predictable revenue: active subscribers grew by 30% month over month during the first six months.
SIMPLICITY FOR USERS
Workouts, nutrition and health in one app with a clear interface — no personal trainer or complicated setup required.
Marketing support and promotion
The following solutions were implemented to increase conversion and attract new users:
- 1.Premium subscription:A freemium model with an upgrade to premium straight from the profile and workout screens: advanced programs and nutrition plans unlock with a subscription.
- 2.Fitness challenges:Regular challenges keep users motivated, boost retention and give them a reason to share their results.
Result
The launch of Fitlex drove rapid growth in popularity among users looking to improve their physical fitness. In the first six months the user base grew by 70%, while the number of active subscribers rose steadily by 30% month over month. The personalized approach, convenient interface and the ability to take part in fitness challenges allowed Fitlex to strengthen its market position and maintain high user engagement.
Contact us
Planning a fitness or wellness app with personalization and subscriptions? Tell us about your project and we'll propose a solution and an estimate.