Turn your Apple Watch into a continuous heart rate tracker — with instant wrist alerts the moment you cross your limit.
Train Smarter in Your Target Heart Rate Zone
Whether you’re warming up, targeting fat burn or pushing aerobic performance, HeartOxy keeps your session focused and zone-based.
Key Features
• Start structured Apple Watch workouts
• Select your preferred heart rate zone
• Real-time intensity feedback during your workout
• Clear visual indicators for Recovery, Low, Target, High and Peak zones
• SpO₂ display during workouts
• Post-workout summary with heart rate stats
• Zone distribution breakdown after every session
• Session history and workout tracking
How It Works
1. Choose your heart rate zone
2. Slide to start your workout
3. Train with live intensity feedback
4. Review your session summary and zone distribution
HeartOxy uses Apple Watch workout sessions to record fitness data during active workouts and provide structured zone-based training feedback.
Designed for Apple Watch
HeartOxy is built specifically for Apple Watch users who want simple, structured heart rate zone training without complicated dashboards.
All workouts are user-initiated and focused on active exercise sessions.
Important
HeartOxy is intended for fitness and workout guidance only. It is not a medical device and is not intended for diagnosis or medical use.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes.
Version 1.1.14
The developer, Boon Piow Leong, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Larger Text
Dark Interface
Information
Seller
Boon Piow Leong
Size
11 MB
Category
Health & Fitness
Compatibility
Requires iOS 16.0 or later.
iPhone Requires iOS 16.0 or later.
Mac Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.