Endurance: Training Diary and Workout Tracker is an AI-based tool designed specifically for endurance athletes, which includes runners. It uses machine learning together with a person's health and workout data to generate a personalized, infinite training plan that adapts to health and fitness data in real-time.

The app helps athletes to focus on reaching their goals by automating their planning. It also allows users to add their race goals, and the AI coach then optimizes the training schedule for peak performance on race day.Endurance looks at the athlete's workout history stored in Apple Health to build an intelligent model of their current fitness, training load, and recovery, just like a real coach.

Users can track their upcoming race goals and obtain reliable race time predictions to achieve better results on race day. The app provides a comprehensive feature for athletes to keep a detailed record of their workouts, analyse their data, and monitor their progress.Endurance is available on iPhone and Apple Watch.

The tool is engineered and designed in Stockholm, Sweden, and it includes a privacy policy and terms of use. The app is useful for all endurance athletes – from those who jog regularly to experienced trainers preparing for a race.

It is a useful tool for anyone wishing to keep a comprehensive record of their workouts and derive insights from the data.