reCharge

Seamless data flow between Apple Watch and iPhone via WatchConnectivity and HealthKit integration.

• Apple Watch → iPhone sync via WatchConnectivity
• Direct HealthKit data access for sleep, heart rate, workouts
• Background SmartRefresh with manual sync triggers
• Real-time health data monitoring

Comprehensive sleep analysis with quality scoring based on duration, deep sleep, REM, and core metrics.

• Main dashboard and "All Sleep" list with detailed views
• Sleep scoring (duration, deep sleep, REM, core phases)
• Sleep pattern analysis and average bedtime tracking
• Night owl tendency detection and circadian insights

Highly personalized sleep and lifestyle recommendations based on 7-day data analysis via ChatGPT proxy.

• Analyzes recent 7-day sleep data + user health profile
• ChatGPT-powered highly personalized suggestions
• Local fallback logic ensures offline recommendations
• Contextual lifestyle and sleep optimization advice

Location-based sunrise/sunset calculations with AI-optimized timing for intelligent notifications.

• Automatic sunrise/sunset time calculation via location
• AI analysis of optimal sunlight exposure periods
• Smart timing based on wake-up status and patterns
• Contextual push notifications for circadian alignment

Guided deep breathing with Apple Watch mindfulness integration and custom fallback animations.

• Preferred: HealthKit Apple Watch mindfulness sessions
• Fallback: Custom animated breathing exercises
• Real-time heart rate monitoring and recording
• Stress level analysis and biometric tracking

Smart hydration tracking with customizable goals, templates, and activity-based recommendations.

• Daily water goal setting (templates + custom amounts)
• Circular progress visualization with quick-add buttons
• Manual input options and intake history
• Activity intensity-based goal recommendations

Personalized recipe generation based on health profile including height, weight, activity level, and dietary preferences.

• Health profile integration (height/weight/activity/preferences)
• AI-generated personalized recipes with nutrition info
• One-tap save to HealthKit for nutrition tracking
• Dietary restriction and preference support

Synchronized workout data display with goal setting and completion progress tracking.

• Automatic workout data synchronization and display
• Fitness goal setting with progress tracking
• Visual progress charts and completion metrics
• Activity insights and performance trends

Complete user management with Sign in with Apple, guest mode, and subscription handling via StoreKit.

• Sign in with Apple + Guest mode support
• In-app purchase subscriptions via StoreKit
• Trial periods, expiration reminders, purchase restoration
• CloudKit backup/sync status and settings management

Comprehensive language support with runtime switching and system integration.

• System/English/Simplified Chinese support
• Pre-built framework for Japanese, Korean, Traditional Chinese
• Runtime language switching with restart prompts
• Localized privacy policies, terms, and help content

Multiple Home Screen widgets and dynamic Live Activities with AppIntent configuration.

• Activity heatmaps, health profile overview widgets
• Sleep quality and workout tracking widgets
• AppIntent configuration support
• Dynamic Live Activity updates and interactions

Dedicated Watch apps for health monitoring and simplified dashboard access.

• reChargeWatch: Heart rate, sleep status, breathing exercises
• reCharge watch app: Simplified dashboard experience
• Real-time health data viewing on wrist
• Quick access to core health metrics and functions