Fitness App Development Company
TWS (Team Work Spirit) is a fitness app development company that builds workout, coaching, nutrition, and gym management apps for fitness brands and clubs, plus coaches and studios.

- less admin work
- 45%less admin work
- faster workout planning
- 3×faster workout planning
- fewer missed sessions
- 60%fewer missed sessions
- member access
- 24/7member access
Fitness App Development Services
Pick the product you need. One team builds and tests it, then supports it after release.
Gym management apps
Runs your fitness business online, with loyalty and instruction apps, user engagement tracking, and remote monitoring of supplies
Built for
Gyms and sports centers
Coaching and training platforms
Compares training goals with real performance, and runs group or individual video classes, online consultations, and streamed events
Built for
Coaches and studios
Workout apps
Delivers custom training programs and online exercises, with video tutorials, geo-trackers, and wearable support
Built for
Fitness brands
Nutrition and diet trackers
Helps users reach eating goals with calorie calculators, diet trackers, and AI meal planners
Built for
Fitness and wellness companies
Personal fitness apps
Gives users personal trainer tools, real-time activity trackers, planners and timers, and at-home training programs
Built for
Fitness brands and clubs
Community and e-commerce platforms
Combines an online shop, exercise tutorials, performance tracking, and a community for your members
Built for
Fitness communities
Fitness Software Development with AI and Wearables
We add AI advisers and meal planners, plus wearable and IoT connections, where they help your users and your teams most. We scope each feature with you and test it before release.
AI-Powered Personal Trainers
Deliver personalized workout recommendations based on fitness goals, training history, activity levels, and user progress.
Smart Nutrition and Meal Planning
Generate tailored meal plans, suggest recipes, and track daily calorie and nutrient intake.
Wearable Device Integration
Connect Apple Watch, Fitbit, Garmin, and other wearables to collect activity, heart rate, sleep, and workout data.
AI Workout Optimization
Adjust training plans based on performance data, recovery patterns, and individual progress.
Automated Fitness Analytics
Generate progress reports, visualize performance trends, and help coaches monitor multiple clients.
AI Fitness Assistants
Provide instant answers to training questions, explain exercises, and guide users through their fitness routines.
Smart Gym Management
Automate class scheduling, membership management, bookings, and member notifications.
Ready to bring AI and connected fitness technology into your business?
Talk to our engineers about AI fitness developmentResults from Our Fitness Work

ZIVA Fitness Nation: the platform for Europe's biggest fitness community
Fitness experts and studio operators use ZIVA every day. TWS built its communication platform and e-commerce software, with an online shop, an exercise tutorials library, a performance tracking system, and a community for enthusiasts, with a built-in search engine. A team of 10 worked on it for 1.5 years.
What Our Clients Say
What You Get with TWS Fitness App Development
A clear development plan before you invest.
Our engineers review your fitness app idea, identify technical challenges, and prioritize essential features to avoid unnecessary costs and development delays.
Experienced fitness app developers on your team.
Work with engineers who understand fitness platforms, workout tracking, coaching functionality, wearable integrations, and gym management systems.
Consistent experiences across devices.
We develop and test fitness apps for iOS, Android, and web, with synchronized user profiles, workout history, progress tracking, and activity data.
Higher member engagement and monetization opportunities.
We implement personalized workout plans, gamification, progress rewards, subscriptions, premium memberships, and in-app purchases to help grow your fitness business.
Seamless integration with fitness technology.
Connect your app with wearable devices, smart gym equipment, payment gateways, nutrition databases, and third-party fitness services.
How a Fitness App Development Project Runs
Review
An engineer runs risk and business analysis and checks your requirements.
Design
UX/UI and architecture, with wireframes and prototypes.
Build
An MVP first, then full engineering and third-party integrations, plus QA.
Run
Cloud services, plus maintenance and support after each release.
Choose How We Work with You
Fixed Price
Your scope is defined, your requirements are locked, and you know the feature list going in. We quote it once and deliver it.
Time & Material
For agile, long-term projects where requirements shift as you learn. You pay for the hours and effort your team actually uses.
Dedicated Team
A hand-picked engineering unit that plugs into your in-house department and runs on your rules, your standards, your schedule.
Managed Services
Priced by the number of servers we manage, or by hourly rate for "as a Service" support. Pick the plan that matches your tech stack and your budget.





