Zones for Training 4+

Heart Rate Zone Training

Flask LLP

    • 4.8 • 16.5K Ratings
    • Free
    • Offers In-App Purchases


Get the most out of your Apple Watch! Zones monitors your exercise intensity and visualize it in meaningful ways. Know your activities and be smart about how you work out.

Zones supports over 70 types of workouts like Running, Walking, Cycling, Treadmill, Exercise Bike, and Strength Training. Great for outdoor/indoor/gym workouts.
Measure it on your Apple Watch, review it on your iPhone. Efficient workouts with Zones!

■ Features
◎ Monitor real-time exercise intensity and heart rate during workouts. (Apple Watch only)
◎ Show your time spent in the four Heart Rate Zones.
◎ Display all workouts data from the Apple Health app, so that you can use Zones as a total workouts dashboard.

■ Training With Heart Rate Zones
Everybody has a different purpose for their training. Someone run for diet, someone ride for improving their cardio endurance. Exercising at the correct intensity can help you get the most out of your workouts.

This app shows you your exercise intensity using your real-time heart rate, and it has four heart rate zones to understand your exercise intensity at a glance.

• PEAK - for improving performance and speed.
• CARDIO - for improving cardio endurance.
• FAT BURN - For longer exercise. Predominantly uses fat for energy.
• WARM UP - For preparation and recovery.

With these four zones, you can start heart rate training very easily and quickly.
You don't have to remember your target heart rate or intensity %.

■ Measuring with Apple Watch
◎ Heart Rate and Exercise Intensity in real-time
• You can easily see which Heart Rate Zone you are in while exercise.
• Your Apple Watch taps you on the wrist when heart rate zone changes.
• Automatic pause/resume function (Running only)

◎ Review your improvements with Recovery Heart Rate
Recovery Heart Rate is the difference between your exercising heart rate and your heart rate one minutes after the exercise has stopped.
It is a good indicator to gauge your fitness level!
This app measures it automatically right after your workouts. (Over CARDIO intensities only)

◎ Leave your iPhone at home
You can leave your iPhone at home when you go for training!

※ Measurement function is only available on the Apple Watch.

■ Detailed Information of Your Workouts
◎ Details of Workout
• Duration
• Active Calories
• Distance, Pace, Splits
• Time in heart rate zones
• Heart Rate and Exercise Intensity (Average, min/max heart rate)
• Graphs of heart rate and pace
• Show your workout on Widgets (requires iOS 14)

◎ Insights (Graphs & Lists)
• Recent Workouts
• Weekly Calories Burned
• Top 10 Distance
• Running Pace

■ Many Ways to Use Zones
◎ Supports over 70 types of workouts
Running, Walking, Cycling, Core Training, Flexibility, Strength Training... and so on!

◎ Works great with other apps through the Apple Health
Zones reads all Workouts data from the Apple Health app, so you can use Zones as a total workouts dashboard.
In this way, you can continue using the apps you already love. Of course, you can see your workouts data from Apple Workouts app in Zones.

◎ Upgrade to PRO
• Stats (Weekly, Monthly, Yearly)
• Create & customize Insights
• Change Heart Rate Zones
• Create Custom Workouts (5 Zones)
• Edit Workout Name

What’s New

Version 5.0.0

This app has been updated by Apple to display the Apple Watch app icon.

・Always‑On Display on the Watch App!
Zones now stays visible while you're exercising, so you can easily see your workout information without raising your wrist or waking your watch.
(Requires Apple Watch Series 5 or later with watchOS 8)

・Pause and Resume Your Workout With the Buttons
You can pause or resume your workout by pressing the side button and Digital Crown simultaneously. You can now turn this feature on and off in the settings.
(Requires watchOS 8 or later)

・Select Key Metric for Your Workout
You can now select the heart rate or exercise intensity (%) to be displayed most prominently during a workout (set in the Settings of the Zones Watch app).
(Requires watchOS 8 or later)

・Added support for the new iOS 15 and watchOS 8.
・iOS 12 and watchOS 5 are no longer supported. If you are using an older OS, please update it.
・Other minor improvements and fixes.

Ratings and Reviews

4.8 out of 5
16.5K Ratings

16.5K Ratings

Mjh422 ,

Great cardio and Apple Watch companion

Love this app. Got it when my friend was new to Apple Watch and was looking for a way to monitor her heart rate zones. It wasn’t even for me! And now here I am singing it’s praises. This app helps to give non gym savvy people like me a target for treadmill work so I don’t wind up mindlessly walking at an arbitrary incline and speed for hours hoping I’ll burn enough calories for fat burn. I also appreciate that this app is set and forget! It works in the background and collects useful data without having to be turned on at the start of every workout. My favorite part however has to be that although there is a paid version, all the features I like and downloaded the app to use have been accessible without incessant prods to upgrade to the paid version. In 2022, that’s basically unheard of and it’s exactly why I’m here writing this review. Easy to use, helpful app that does what it advertises without the upgrade guilt trip. Very pleased.

Princess*Zelda ,

Please add the edit feature for past workouts from other apps!!

I purchased an Apple Watch about two months ago and have been using Zones to help track my fitness progress ever since. I love everything about it so far, especially the graphs and insights available for the upgraded version (definitely better than other apps that charge monthly or yearly subscription fees). The only thing I would really love to see change is the ability to edit past workouts. When I purchased an indoor bike (this was a few months prior to getting my Apple Watch and using zones), I used a different app my phone to log all of my workouts on the bike, but there unfortunately wasn’t a way for me to input the distance at the time—and being that it is an indoor bike, the app’s estimates of miles travelled were very low (0.02, etc.). While I love that Zones allows me to edit the distance on all of the cycling workouts I have recorded through the Zones app on my Apple Watch, I’m disappointed that I can’t edit previously logged entries and have more accurate graphs. I tried using different apps to input distance, but every attempt at this only doubled my workout entries and caused all of my data/graphs to be incorrect in Zones. Please, please, pleeeease add the edit feature or some sort of manual entry for workouts saved from other apps! This would be a lifesaver and help me make so much more sense of my cycling data! It is honestly the only thing keeping me from giving this app 5 stars!


Lots of glitches

I am a user of this app who had upgraded to Pro. I do HIIT training about 4-5 times a week, and often have to restart in the middle of the my workout for freezing up and not registering my heart rate correctly. Then recently, it stopped transferring data from my watch to the phone. After restarting both iWatch and iPhone, I tried to delete the app and re-install. It lost all of my data. I contacted customer service and they referred me to an online faqs page of what’s supposed to happen when one tries to delete the app (2 prompts are supposed to show up, the second allowing you to keep your health data). However the second prompt never showed up for me and the app deleted after the first prompt. I tried deleting again as a sanity check since I absolutely do not remember that second prompt, and again it deleted the app after the first prompt. Now my last 6 months of workout data is gone. I guess not the end of the world in the greater scheme of things, but still frustrating that the glitches in the app keeps it from working as it’s supposed to. Will be utilizing a different app, as this one is obviously not trustworthy.

2 stars because it’s great when it actually works.

App Privacy

The developer, Flask LLP, 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


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