Fitness App Development
We design and build fitness apps for iOS and Android: workout and coaching apps, nutrition trackers and gym software people keep using.
Fitness apps we build
Workout and training apps
Programs, exercise videos, timers and progress tracking for training at home or in the gym.
Coaching platforms
Apps that connect coaches and clients with plans, check-ins, chat and progress photos.
Nutrition trackers
Meal logging, macro targets and recipes, with barcode scanning where it helps.
Gym and studio software
Class booking, memberships, check-in and staff schedules for gyms and studios.
Wearables and health data
Steps, workouts and heart rate from Apple Health and Google Health Connect, with the user's permission.
Subscriptions
Free trials, memberships and in-app purchases through the App Store and Google Play.
Problems we solve
What usually stands between a fitness app and its users.
People stop opening the app
We design onboarding, reminders and streaks that bring them back in the first weeks.
Messy wearable data
Devices report data differently. We normalize it so charts and goals stay accurate.
Two apps to maintain
One Flutter or React Native codebase serves iOS and Android, so features ship to both together.
App store rejections
Health data and subscriptions follow strict store rules. We build to them from the first sprint.
How AI makes a fitness app more personal
AI works best here as a coach's assistant: it adapts the plan, and a person stays in charge of anything health-related.
Adaptive plans
Workouts that adjust to progress, missed sessions and feedback.
Coach chat
An assistant that answers training and app questions in your coaching style.
Meal logging from photos
Users snap a meal and confirm what the app suggests.
Progress insights
Weekly summaries that explain trends in plain language.
Tech we use for fitness apps
We pick the stack for each product and the team that will run it. These are our usual picks.
Flutter
React Native
Swift
Kotlin
Node.js
Python
AWS
OpenAI
Fitness app development FAQs
Can a fitness app sync with Apple Health or wearables?
Yes. Apps can read and write workouts, steps and heart rate through Apple HealthKit and Google Health Connect once the user grants permission. Many wearable makers also offer their own APIs.
Can you build a gym or studio management system?
Yes. Typical features are class schedules and booking, memberships and payments, check-in, staff schedules and a member app. We can connect it to the access or equipment systems you use, where they have an API.
How do subscriptions and in-app purchases work in a fitness app?
Digital content sold inside an iOS or Android app usually goes through Apple's and Google's in-app purchases. We set up plans, trials and restored purchases, and keep access in sync with your back end.
Tell us what you're building.
