Development of a Modular Mobile Training Diary Platform for Multi-Sport Athletic Programs

The client required a robust mobile application to serve tens of thousands of professional athletes, supporting multiple sports with diverse training routines. The existing system's architecture relied on rigid data structures with XML files, limiting agility and scalability. The app needed to be highly customizable with minimal manual intervention, capable of integrating with wearable devices, and compliant with data protection regulations like GDPR and local laws. Additionally, the client lacked sufficient in-house engineering resources for development and scaling efforts.

A mid-sized sports technology company providing digital training solutions for athletes across multiple disciplines, aiming to expand globally.

• Deliver a fully functional mobile training diary app supporting 50+ sports categories with customizable templates.
• Implement scalable and flexible data parsing mechanisms, reducing sport addition setup time from weeks to hours.
• Design an architecture based on MVVM pattern to facilitate UI and backend independence and ease maintenance.
• Integrate the app seamlessly with popular wearable devices via APIs for automated workout data synchronization.
• Establish secure handling and privacy of personal athlete data complying with GDPR and regional data protection laws.
• Enable group workout management through features that support collaboration with sports clubs and coaches.
• Provide ongoing support and system maintenance to ensure scalability and security.

• Sport-specific templates for training diaries, adaptable to more sports with minimal effort
• XML parser modules designed for quick integration of new sports categories
• Goal setting and progress tracking for athletes (yearly, weekly)
• Dashboard views for athletes and coaches showing workouts, goals, and notes with privacy controls
• Secure user authentication and data encryption aligned with GDPR and local legislation
• API-based integration with wearable devices like Garmin and Polar for automated data import
• Planner module binding athletes’ plans, workout loads, and actual results
• Role-based access for athletes and coaches to ensure data privacy and collaboration

• Wearable device APIs (Garmin, Polar, etc.) for workout data synchronization
• Backend web system APIs for dashboards, goals, and notes management
• Data privacy and security compliance tools

• Scalability to support tens of thousands of users and multiple sports
• High performance with minimal latency in data synchronization and UI responsiveness
• Data security and privacy complying with GDPR and local legal frameworks
• Rapid sport template addition capability (reducing setup from weeks to hours)
• System availability and fault tolerance

The new system aims to accelerate development cycles, enabling the addition of new sports templates within hours. It will support a user base of tens of thousands of athletes and facilitate stronger partnerships with sports clubs by providing group workout functionalities. Automated wearable integration will save time for athletes and coaches, while enhanced security and compliance measures will ensure trust and data integrity. Overall, the project is expected to significantly boost market reach, operational efficiency, and user satisfaction.