The client, a successful fitness coach, needed an app that would enable him to train clients online, provide personalized nutrition and lifestyle recommendations, and track the progress of his trainees. Additionally, the app needed to help clients achieve their goals, integrate with their personal calendars, and send notifications about their achievements. An important feature was also the ability to track the balance of proteins, fats, and carbohydrates, as well as monitor weight changes and other body parameters

Our team successfully developed an app for Android and iOS that meets all the specified requirements. Kotlin was chosen as the primary technology due to its functionality and reliability. One of the significant achievements was the implementation of a real-time streaming feature, supporting simultaneous interaction for up to 20 users with minimal latency. We also integrated a voice chat function during workouts and connected the app with leading calendar applications. The developed app also includes integration with several popular payment systems in Europe

The app created a new digital revenue stream for the fitness coach, enabling him to train up to 20 clients simultaneously in real-time, effectively multiplying his earning potential. Key integrations - including calendar synchronization and automated payment processing - reduced administrative tasks by an estimated 40%, while personalized tracking features helped clients achieve their fitness goals faster based on progress data, significantly boosting client retention