Cardiogram: HR Monitor icon

Cardiogram: HR Monitor

Your Heart Health Companion

Download on the App Store Get it on Google Play

Monitor your heart rate in real time with complete privacy. Cardiogram is a fast, accurate heart rate monitor and BPM tracker designed for athletes, fitness enthusiasts, and anyone who wants to better understand their heart health. Connect an Apple Watch, compatible Bluetooth heart rate monitor, or Health Connect and track your heart rate live during workouts, recovery, and daily activity.

Unlike many fitness apps, Cardiogram does not require an account, does not use cloud storage, and does not track or sell your data. Your health information stays under your control.

Real-Time Heart Rate Monitoring

Track your heart rate and BPM live during:

  • Running
  • Cycling
  • Walking
  • Gym workouts
  • Cardio training
  • HIIT sessions
  • Recovery monitoring

View accurate heart rate data in real time and stay within your target training zones.

Apple Watch, BLE Sensors & Health Connect

Cardiogram works with a wide range of heart rate sources:

  • Apple Watch
  • Polar heart rate monitors
  • Garmin heart rate monitors
  • Wahoo heart rate monitors
  • CooSpo sensors
  • Magene sensors
  • Other Bluetooth Low Energy (BLE) heart rate monitors

On Android, Cardiogram integrates with Health Connect to help keep your health and fitness data synchronized across compatible applications.

On iPhone, Cardiogram works with Apple Health and Apple Watch to provide a seamless heart rate tracking experience.

Train Smarter with Heart Rate Zones

Instantly understand workout intensity using color-coded heart rate zones:

  • Fitness
  • Fat Burn
  • Aerobic
  • Anaerobic
  • Maximum Effort

Whether your goal is endurance, weight loss, cardiovascular fitness, or performance improvement, Cardiogram helps you train with confidence.

Privacy First. Always.

Most health and fitness apps require accounts, subscriptions, cloud services, or data sharing. Cardiogram takes a different approach.

  • No account required
  • No subscriptions
  • No cloud storage
  • No tracking
  • No advertising profiles
  • Data stored locally on your device

Your health data belongs to you.

Built for Everyday Fitness

Use Cardiogram to:

  • Monitor heart rate during workouts
  • Track exercise intensity
  • Analyze heart rate history
  • Monitor recovery trends
  • Record training sessions
  • Sync with Apple Health or Health Connect
  • Connect Bluetooth heart rate monitors in seconds

Fast, reliable, and battery efficient, Cardiogram is designed to help you focus on your training instead of your technology.

Available for iPhone and Android

Download Cardiogram today and experience real-time heart rate monitoring without compromising your privacy.

No account. No cloud. No tracking. Just your heart rate data, when you need it.