Coach Leo

Coach Leo is an AI-powered running coach designed for iOS devices, offering personalized training and nutrition guidance by integrating with Apple Health data. The app aims to help runners train more intelligently by automatically adjusting schedules based on individual exercise, sleep, and nutrition patterns. Users interact with an AI coach that provides real-time feedback, explanations for its recommendations, and adapts plans in response to changing health metrics such as resting heart rate, sleep quality, active calories, and steps.

The platform features nine distinct coach personas, including six for running and three for nutrition, each with their own coaching style and approach. Runners can generate tailored training plans for specific goal races, with automatic progression, recovery blocks, and tapering, all personalized to the user's current fitness level. Coach Leo also offers daily reflections on sleep and heart rate data, and provides a daily motivational message based on training context and goals. For nutrition, users can select from different coaching personas to receive advice on sports nutrition and recovery.

Coach Leo syncs training sessions with Apple Calendar, automatically updating details such as type, distance, and approach, and reflecting any changes made to the schedule. The app allows users to accept or decline suggested session modifications, such as adjusting distance or rescheduling workouts, with clear explanations provided for each recommendation. After a workout, the AI can generate three different Instagram post variants—motivational, humorous, or reflective—enabling users to share their achievements socially. Even without a set training plan, the coach analyzes recent workouts and suggests the next appropriate session during conversations.

All health data remains stored locally on the user's device, with privacy measures ensuring that personal information is not permanently uploaded to servers. Users can export their conversations as JSON backups and delete their account and data at any time. Coach Leo operates using Anthropic Claude as its AI engine and allows users to add their own Anthropic API key for unlimited use, or use a built-in limit during the beta period, which includes a one-time test budget for trial purposes.