GymAI Flex

Apple Intelligence builds your workout from HealthKit data — private, on-device. Body heatmap, streak tracking, and Apple Watch companion included.

GymAI Flex helps you build a sustainable fitness habit by providing AI-powered, personalized workout suggestions based on your daily training records.

Key Features:

• Apple Intelligence powered suggestions — processed on your iPhone, not in the cloud (iOS 26+)
• Body Heatmap: Visualize muscle fatigue and targeted areas at a glance
• Apple Watch Companion: Check your streak right from your wrist
• HealthKit Integration (workouts, sleep, resting heart rate, etc.)
• Weekly reports and detailed analysis
• Streak tracking (motivating streak counter)
• 1RM estimation and progress chart
• Custom exercise master management (add, edit, search)
• Smart reminders
• No account required — start instantly with anonymous sign-in

Perfect for you if you:

• Are unsure what to train each day
• Want to train efficiently without injury by considering fatigue and recovery
• Want to get more out of your Apple Watch and HealthKit data
• Want to build a consistent training habit

Premium Plan: Core logging features are free. Premium is a one-time purchase. No subscription required.

Important Notes:

• This app is NOT a medical device
• Suggestions are informational, not medical or diagnostic
• If you experience pain or discomfort, stop exercising and consult a doctor