What is Simple Muscle
Simple Muscle is an iPhone workout planning and tracking app built for the AI assistant you already use. Connect ChatGPT, Claude, or another compatible AI so it can create and update real workouts using your goals, preferences, and completed training history. The native app gives you focused set logging, rest timers, exercise demonstrations, training history, and Live Activities.
Key Features
Use Cases
- Plan workouts with ChatGPT or Claude
- Track gym sessions on iPhone
- Review training history with an AI assistant
Why do startups need this tool?
Startup teams and independent builders can keep training consistent without paying for a separate proprietary AI coach; Simple Muscle works with the AI subscription they already use.
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