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Heart Rate Training, Nonstop

Squad Club heart rate training for bootcamps, fitness studios, and gyms. Connect up to 12 Bluetooth® heart rate sensors to your iPhone/iPad. Monitor training intensity 24/7, track aerobic fitness, and send workout reports automatically.

US$ 9.99/mo incl 30 days free trial

App Store

Squad Club


Squad Club is the next generation in heart rate training for bootcamps, fitness studios, and gyms. Calculates relative effort, energy expenditure, and training intensity (TRIMP). Tracks workout load and aerobic fitness trends, and estimates energy afterburn (EPOC). Supports 24/7 group heart rate monitoring and individual session logging. Squad Club can help to increase motivation, optimize workouts, and improve aerobic fitness.


On-screen heart rate helps push beginners to reach higher training zones. Gives coaches and personal trainers accurate feedback on training effort and recovery times. Helps users track progress towards their fitness goals with easy-to-understand workout reports. What you can measure, you can improve!


Automatically starts and stops individual training sessions, and sends workout results via email. Syncs session data across all your iDevices on the same iCloud account. You can display heart rates on a large TV via Airplay from one iDevice, and analyse training results on another iDevice. All-in-one coaching, motivation, and retention tool!


iCloud syncing lets you connect up to 12 Bluetooth heart rate monitors^ on one iDevice, or 24 heart monitors on two iDevices, 36 on three iDevice, and so on. Recorded heart data is synced across all iDevices on the same iCloud account. Give new life to your older iDevices! (requires iOS13 or higher)


* Records real-time heart rate (Bluetooth heart rate monitors required)
* Calculates training effort, energy expenditure, and training scores (Trimp)
* Estimates energy afterburn (EPOC) and aerobic fitness over time
* Starts, stops and saves training sessions automatically
* Sends workout reports via email automatically
* Syncs data across all iDevices on the same iCloud account
* Runs multiple app instances on all iDevices on the same iCloud account
* Exports session heart data to iCloud drive
* Registers heart rate monitors using simple tap-to-pair action
* Connects up to 12 Bluetooth heart rate monitors per iDevice^
* Supports all Bluetooth heart rate monitors compatible with iPhone/iPad/iPod
* Screen mirroring onto HDMI-equipped TV, display, or projector via Lightning Adaptor, or Apple TV via Airplay


*Free version includes 30 day trial of all subscriber features. You can continue using the app after your trial ends, excluding activity tracking.

*Subscriber version (in-app purchase) includes activity tracking for up to 12 Bluetooth heart rate monitors^

^Actual Bluetooth connection limit may vary depending on your iDevice model. For example, our iPhoneX running iOS13 simultaneously connects 12 Bluetooth heart monitors, while our iPad (5th Gen) and iPod Touch (7th Gen) connects up to 7 heart monitors. Before subscribing please verify connection limit on your own iDevice(s) using the 30 Day Free Trial.

Mirror to HDMI-equipped TV, display, or projector via Lightning Adaptor, or Apple TV via Airplay.

Sends workout reports automatically and help gym members track progress

Frequently Asked Questions


What Minimum Setup Do I Need To Run Squad Club In My Bootcamp/Studio/Gym?
You can setup Squad Club to run 24/7 on your TV, projector, or computer monitor using the following equipment:

New iPod Touch# USD199 (or iPhone/iPad)
Digital AV Adaptor^ USD49 or Apple TV^ USD149
HDMI Cable^ USD20
Wahoo Chest Strap USD50 or Wahoo Armband Heart Rate Monitors USD80 (examples only)

#Requires internet connection for sending workout reports
^Digital AV Adaptor / Apple TV and HDMI Cable only required if Airplaying onto TV, projector, or computer monitor.
*Prices last updated 25th Jan 2020


What is Heart Rate Training?
Heart Rate Training (HRT) is the method of tracking your heart rate to optimize your workout. Heart Rate (HR) is simply the number of times your heart beats per minute (bpm) as it pumps blood through your system. HR shares a direct, linear relationship with exercise intensity - the more intense the exercise, the higher the heart rate. This makes HR one of the best indicators of how hard your body is working during a workout. HR must increase to match the increased demand of the working muscles. As aerobic fitness develops, your muscles ability to pull oxygen out of the blood improves, and so your HR decreases at any given level of work output (exercise load). HR and physical characteristics such as body weight, age, and gender are used to estimate energy expenditure, exercise intensity, and aerobic fitness.

In general, a drop in exercise heart rate is a good indicator of improving fitness.
How Is Max Heart Rate Calculated?
Max Heart Rate (MHR) is defined as the highest number of beats per minute your heart can pump under maximum effort. So when you exercise at the highest possible intensity, your heart will reach MHR, the fastest rate it is capable of beating. MHR can be estimated from the commonly used formula 220 minus age. However this formula is not perfectly accurate, especially for people who have been fit for many years or for older people. You can accurately measure your true MHR by warming up properly and then performing a series of high-intensity intervals to maximum effort, such as hill-climbs (running/cycling) or inclined treadmill, while wearing a heart rate monitor. There is also a settings option to update automatically when peak heart rate exceeds current maximum in session. MHR is used primarily to calculate your heart rate training zones.

For safety reasons people aged over 35, overweight, poor physical condition, sedentary for several years, or have a family history of heart disease, should have their max heart rate clinically measured by a cardiologist or exercise physiologist.
How Is Training Score Calculated?
Training Score (or TRaining IMPulse, "TRIMP") is a measure of the cumulative exercise intensity from a single workout to quantify training load. Edwards' summated heart rate zones score method is used to calculate your training score. Training score is calculated as the product of the cumulated training duration (in minutes) for five heart rate zones multiplied by a coefficient relative to each zone (ie. 90-100%HRmax = 5; 80-90% = 4; 70-80% = 3; 60-70% = 2; 50-60% = 1; <50% = 0). The highest possible score would require training in your maximum zone (90-100%HRmax) for the full duration of the workout (ie. total session minutes multiplied by 5). The estimated change in training score from the first session is based on the angle of the trend line (best-fit) - upward indicates increasing training score, and downward is reducing. In general, higher training scores may produce better training-induced adaptions.

Higher training scores can be achieved with longer duration and/or more vigorous workouts.
What Is Recovery Heart Rate?
Recovery Heart Rate (RHR) is the speed at which your heart rate returns to normal after stopping exercise. Recovery Time (RT) is the number of seconds it takes for heart rate to drop from maximum red zone (90-100% HRmax) to recovery blue zone (<60% HRmax). RT is the metric used to track aerobic fitness (or heart health). The estimated change in aerobic fitness from the first session is based on the (inverse) angle of the recovery trend line (best-fit) - downward indicates recovery times getting shorter (increasing fitness), and upward is getting longer (decreasing fitness). In general, aerobic fitness improves as recovery times get shorter.

Best RT measurements can be obtained by resting for approx. 2mins after high-intensity interval until heart rate falls from max red zone (90-100%) to recovery blue zone (<60%). RT readings without proper rest intervals may not be accurate and should be ignored.
How Is Recovery Change Calculated?
Squad uses linear trend estimation (trendline) to determine the percentage change in recovery time between a start and end date (end-points). Since recovery time is a good indicator of aerobic fitness then the percentage change may also represent fitness trend. It's important to highlight the accuracy of percentage change will depend on how linear are the reference points (recovery times). In other words, more linear recovery times will produce a more accurate percentage change.

In general, you can increase accuracy by resting in the same way after each high-intensity interval. For example, seated static rest (or standing, or lying flat) for 2-3 minutes until heart rate falls to blue recovery zone.


How Do I Pair Heart Rate Sensors?
Bluetooth heart rate sensors can be paired/unpaired either by swiping-left on the main profile screen or by tapping the "+" button on the add/edit profile screen. To pair you must first activate the sensor (ie. wear strap/band or hold finger across snap connectors), and then bring it close to your iDevice until you hear a confirmation beep (like Apple Pay). Sensors with unique identifier names (ie. Polar H7 4C47911A) will be prefixed with a cloud icon. The cloud icon indicates this sensor can also be found on the activity screen of other iDevices on the same iCloud account. Sensors with non-unique identifier names can only be found on the activity screen of the iDevice it was originally paired to.
What Is The Difference Between "Display" And "Device" Limits?
The display limit is the maximum number of users that can be tracked and displayed on the activity screen. Note this is different to the "device limit" which is the actual number of simultaneous Bluetooth connections your iDevice can support. For example, iPhoneX running iOS13 supports up to 14 simultaneous connections, while iPad (5th Gen) and iPod Touch (7th Gen) running iOS13 only support up to 7. However, the maximum number of simultaneous Bluetooth connections can be increased by running Squad Club on multiple devices that share the same iCloud account. For example, if you tracked 12 users simultaneously on your iPhoneX, and an additional 6 users on your iPad at the same time, then a total of 18 training sessions (12+6=18) would get synced to both devices.

Squad Club includes a 30 day free trial to determine the actual connection limit for your particular iDevices.
Why Do Some Users Not Receive Workout Reports?
Squad Club utilises the Sendgrid email service for reliable and trusted automated delivery of workout reports. However, due to the high volume of emails delivered by this service, it's still possible some recipient email servers will incorrectly flag messages as spam. This could lead to some of your members missing out on their important workout reports.

Please advise affected members to first check their Junk folders. Also, some members may be able to configure their email client to allow messages sent from * Alternatively you might ask them to provide an alternate address from a common email service, such as gmail.
How Much Mobile Data Do Workout Reports Require?
Raw results data from each training session is transmitted from your iDevice over cellular/wifi to the Sendgrid email service. Sendgrid formats this data into a workout report and then sends this via email to your recipient. As a guide, the raw data size from a single 1hour workout being sent from your iDevice is around 3Kb. Therefore, the total data size sent from your iDevice after training a group of 10 people would be around 30Kb, and so on. You may need to consider your data requirements when relying on a cellular network to deliver workout reports (ie. for outdoor bootcamps). Alternatively, disable automatic delivery from the Activity screen and wait until you're in a Wifi zone to manually send workout reports.
Which Bluetooth heart rate sensors are iCloud compatible?
Below is the current list of heart rate sensors which can be found by all iDevices on the same iCloud account.

Polar H7
Polar OH1

**Please contact us if your heart rate sensors have unique identifier names (ie. serial number prefix) that can be added to this list.
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