Internet Stars was tasked with creating a complete ecosystem: from product architecture and UX/UI, to backend and web panel, to mobile applications, subscription system and integrations with external services (payments, analytics, AI). A key component of the app is a starter quiz that examines the user's goal, fitness level, lifestyle and available equipment, and then generates a personalized plan: workout and nutrition - available in a single account on multiple devices (phone, tablet, laptop, TV).  Internet Stars designed and implemented a training module with dozens of programs for different goals (fitness, mobility, reduction, body building), a training calendar, load recording, progress tracking, and a challenge, medals and points system that turns working on form into a game.