Zones for Training 4+

Heart Rate Zone Training

Flask LLP

    • 4.8 • 17.6K 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

■ Required Device
Apple Health is required to use.
For iPad, please update your OS to iPadOS 17 or higher.

What’s New

Version 7.0.2

・Fixed a bug with Weekly Goal Watch Complication
・Fixed minor bugs

Ratings and Reviews

4.8 out of 5
17.6K Ratings

17.6K Ratings

Darciuca ,

Great OTF and running companion

I have had this for about 3 months and paid for the pro version about two weeks ago. My main reason for upgrading was that the orangeZones app kept breaking. At least the free one does. And I was not going to pay 70 dollars a month for that. The free one of this one starts automatically when you do any workout so you get the data too, and this is also true for the paid one. So a great way to get extra data in your OTF workouts. I wear an arm band too and it usually matches quite well. Love that it vibrates when switching zones. If anything I do wish one could customize the main screen to show percentage bigger like the orange zones one does. And it would be nice if it counted minutes in the zones if one wanted it. I am also training for a run and love this as it allows me to know my zone and thus pace myself properly, this was the main reason I upgraded and it was worth it.

iTif ,

Works well

I mainly use this app while cycling, so my review is based around that. I enjoy hearing the zone sounds while I’m working out, since I’ve had issues with recording workouts with my watch in the past. Recently, I was 55 min deep into my ride, only to notice that even though the HR zones were still sounding, the ride had paused at 4 min. Joy. Next day, it happened again, but a bit further into the ride. Turns out that if you take a screen shot (of a song that’s playing and you want to remember it, easy enough to do without looking at watch) or tell your Apple Watch to remind you to do something later (best thinking comes while I’m on the bike), it pauses the workout, and you have no real way of knowing unless you are able to really look at your watch while moving (hard to do on moving bike and watch is worn on forearm). The app pauses when you are stopped, which I like, but since I would have to stop to see if the app was recording… You might be thinking “why don’t you hit resume or continue or whatever?” Because there is NO WAY to unpause the workout!
So, Zones team, please fix the issue of pausing the app when things like a screen shot are taken or Siri is activated, or at least throw in a “resume” workout option.


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


  • Siri

    Get things done within this app using just your voice.

More By This Developer

You Might Also Like

Workout Tracker - FITIV Pulse
Health & Fitness
Athlytic: AI Fitness Coach
Health & Fitness
Gentler Streak Fitness Tracker
Health & Fitness
Polar Beat: Running & Fitness
Health & Fitness
HeartWatch: Heart Rate Tracker
Health & Fitness
Health & Fitness