CombiFitTrack

Multi-Device HR Comparison

$4.99

Compare your Whoop, Apple Watch & Polar H10 heart rate side-by-side during workouts. Find out which device and placement works best for you. Is your fitness wearable actually tracking your heart rate correctly? CombiFitTrack lets you find out. CombiFitTrack is a real-time heart rate comparison tool that connects to multiple fitness devices simultaneously — Whoop, Apple Watch and Polar H10 chest strap — so you can see exactly how each one performs during your workouts. COMPARE YOUR DEVICES Track heart rate from up to three sources at once and see the data overlaid on a single live chart. Instantly spot which device under-reports, lags behind or drops readings during different exercises. FIND THE BEST PLACEMENT Wrist-based heart rate sensors are heavily affected by placement. Wearing your Whoop on your left wrist might give poor readings during light exercises, while switching it to your right wrist — or wearing your watch on the opposite arm — can dramatically improve accuracy. CombiFitTrack helps you discover what works best for your body. USE POLAR H10 AS YOUR BENCHMARK If you own a Polar H10 chest strap, use it as your gold-standard reference. Chest straps measure electrical heart signals directly and are considered the most accurate consumer HR monitors. Compare your wrist wearables against it to see how close they really are. WORKOUT FEATURES - Real-time heart rate from Whoop, Apple Watch and Polar H10 - Side-by-side comparison chart during workouts - Full-screen gym display visible from across the room - Live calorie estimation based on your heart rate - 25+ activity types with HR-based calorie calculations - Workout history with search, filtering and detailed charts - Per-device HR breakdown for every recorded session - Live Activity on your Lock Screen during workouts IMPORTANT SETUP NOTES - Whoop: Enable "Bluetooth Heart Rate Broadcast" in your Whoop app settings (Settings > Heart Rate Broadcast). Your Whoop must be broadcasting for CombiFitTrack to detect it. - Apple Watch: Open the CombiFitTrack companion app on your Apple Watch and tap Start before beginning a workout on your iPhone. The Watch app must be running to stream heart rate data. - Polar H10: Simply wear your chest strap and CombiFitTrack will detect it automatically via Bluetooth. ADDITIONAL FEATURES - iCloud sync across your devices - Customisable colour themes - Photo backgrounds - Configurable heart rate zones - Save workouts to Apple Health - Apple Watch companion app Designed and built by www.mpcode.dev

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The developer, Martynas Prascevicius, 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.

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    Accessibility

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    Information

    • Seller
      • Martynas Prascevicius
    • Size
      • 5.8 MB
    • Category
      • Health & Fitness
    • Compatibility
      Requires iOS 26.0 or later.
      • iPhone
        Requires iOS 26.0 or later.
      • Apple Watch
        Requires watchOS 26.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2026 mpcode
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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