Zanshin Fitness

Zanshin: The Privacy-First Tabata & HIIT Workout Timer Train with focus. Own your data. Zanshin is a professional-grade Tabata and HIIT workout timer designed for athletes who value both performance and privacy. Track your heart rate zones, calories, and training points—all while keeping your data 100% on your device. KEY FEATURES • Tabata & HIIT Timer - Classic Tabata (20s work, 10s rest, 8 rounds) - Customizable HIIT intervals - Free-form open timer - Create and save custom workouts - Voice countdown announcements - Visual and audio phase transitions • Real-Time Heart Rate Tracking - Connect Bluetooth heart rate monitors - Monitor 5 heart rate zones in real-time - Track average, max, and min heart rate - Zone distribution analysis - Training points system • Performance Metrics - Calorie burn estimation - Heart rate zone points - Workout duration tracking - Energy level ratings - Workout notes • Privacy by Design - 100% offline—no internet required - All data stored locally on your device - Export workout data to CSV - Optional HealthKit integration • Minimal Mode - Distraction-free timer mode - Hide metrics for maximum focus - Perfect for pure Tabata sessions - Toggle on/off anytime • Workout History - Complete workout history - Heart rate graphs and zone analysis - Export individual or all workouts - Energy level tracking over time • Health App Integration - Optional HealthKit sync - Workouts appear in Activity rings - Full control over data sharing PERFECT FOR • Tabata enthusiasts • HIIT training athletes • Privacy-conscious fitness users • Athletes who want detailed heart rate insights • Anyone who values data sovereignty PRIVACY FIRST Your workout data, heart rate information, and personal metrics are stored exclusively on your device. Your workouts. Your data. Your control. TECHNICAL REQUIREMENTS • iOS 18.6 or later • Bluetooth heart rate monitor (for full features) • Optional: HealthKit for workout sync DISCLAIMER Zanshin is a fitness tracking tool for informational purposes only. It is not a medical device and should not be used to diagnose or treat any health condition. Always consult with a healthcare professional before starting a new high-intensity training program. Built for the focused. Handcrafted by https://nashubyte.com/