Planfit

Built on a foundation of over 80 million gym workout data points, the platform's AI generates training plans with the right exercises, sets, reps, and weightsthen continuously adapts those plans based on the user's logged performance and recovery.

Korea's leading fitness app, Planfit has grown to over one million users across more than 100 countries.

The AI personal trainer within Planfit, called Max, is powered by ChatGPT technology and functions as an interactive coach that users can converse with about their training.

Max provides exercise recommendations, answers questions about form and programming, offers motivational support, and adjusts the workout plan when users report fatigue, soreness, or changes in their schedule.

This conversational layer makes the AI feel like a genuine training partner rather than a static program generator.

Progressive overload is automated throughout the Planfit experience. As users log their workouts, the AI analyzes performance data and intelligently adjusts the recommended weights, sets, and repetitions for upcoming sessions to ensure each training block continues to challenge the user appropriately.

Muscle recovery tracking prevents overtraining by monitoring rest periods and flagging when a muscle group needs additional recovery time before being trained again.