Get Started with Heart Rate Ninja

Whether you're using Heart Rate Ninja as an individual or a gym we'll help you download the app, create a profile, and get started.

For Individuals For gyms & trainers

the app &
sign up ✏️

  1. Download the Heart Rate Ninja app on your phone or tablet
  2. Follow the instructions in the app to create your profile

Download iOS Download Android

* This step is optional

Download QR Codes

You can scan either of these QR codes with your phone or tablet to download the app.

Download iOS

Heart Rate Ninja Icon

Download Android

Heart Rate Ninja Icon

connect your heart rate monitor ❤️

After you download Heart Rate Ninja, the app will guide you through the process of connecting your Bluetooth heart rate monitor.

Why do I need a heart rate monitor?

Heart Rate Ninja uses your heart rate monitor to measure your workout intensity.

Can I create a profile without a monitor?

Yes. Heart Rate Ninja uses your heart rate monitor to measure your workout intensity.

Can I use my own heart rate monitor?

Yes! Heart Rate Ninja does not require any proprietary hardware.

Which heart rate monitors are compatible?

Heart Rate Ninja is compatible with most popular Bluetooth LE heart rate monitors. Click here to learn more.

Apple Watch & Apple Health

Unlike most heart rate monitors, the Apple Watch does not allow apps to access heart rate data via Bluetooth. We highly recommend a Bluetooth chest strap or armband heart rate monitor.

My heart rate monitor isn't being detected
  1. Make sure your monitor is turned on
  2. Make sure you are wearing your monitor
  3. Make sure your monitor is within 30' of your phone or tablet
  4. Make sure your monitor is not paired with another app
  5. Make sure your monitor is not paired with another device
  6. Make sure your monitor's battery is charged and working
  7. Make sure your monitor is Bluetooth LE compatible
  8. Make sure your phone or tablet's Bluetooth is enabled
  9. Make sure Heart Rate Ninja has Bluetooth access
  10. Make sure Heart Rate Ninja has Location access
  11. Restart your phone or tablet
How do I estimate my maximum heart rate?

"To estimate your maximum age-related heart rate, subtract your age from 220. For example, for a 50-year-old person, the estimated maximum age-related heart rate would be calculated as
220 – 50 years = 170 beats per minute (bpm)."

What is the max monitor range?

The max range will vary based on environmental obstructions (walls, workout equipment, etc.) between the app and your heart rate monitor(s) and the Bluetooth capabilities of your phone or tablet.

In a gym with a high number of obstructions we've seen a max distance of 30-50'. However, there are a number of steps you can take to make sure you achieve the highest distance.

The most important is to make sure there is an unobstructed line-of-sight from your phone/tablet to each heart rate monitor.

If you're coming from another heart rate monitoring app you should see the same range you saw in other apps (all apps communicate with the monitors in a similiar manner).

If you're having any issues related to range send us an email. We can help diagnose any issues and get you setup with a possible software-based solution.

How many monitors can be connected at once?

The maximum number of heart rate monitors that can be connected depends on the Bluetooth capabilities of your phone or tablet.

We have had gyms run workouts with 25 monitors at the same time.

If you're unsure about the Bluetooth capabilities of your device request a demo and we'll give you a free trial so you can make sure Heart Rate Ninja works for your needs.

* This step is optional

Join group workouts at your gym 💪

  1. Ask your gym for their Heart Rate Ninja invite code
  2. Enter the invite code in your profile

Your profile will automatically appear at the gym and your instructor will be able to add you to workouts, competitions, challenges, etc.

What is an invite code?

Invite Codes link clients to a specific gym or trainer. This is important for gym members, as this is what allows you to participate in their challenges, display on their monthly leaderboard and makes it easy to connect with other Ninjas at the gym!

That's it 🥳

You're ready to start working out with Heart Rate Ninja!