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• If you exercise on a regular basis and want to improve your cardiovascular fitness, you need this App!

• Use this App to determine your target heart rate exercise zone. Your optimum heart rate zones are based on your age and resting heart rate. This App will calculate your unique heart rate zones and let you view them easily.

• When you exercise it is important to be aware of your heart rate. If your heart rate is too low you won't be get much benefit from your workout. If your heart rate is too high you may be burning calories, but you may also cause injury to your body. This App will help you exercise in your optimum heart rate zone.

• A good guideline is to stay within your target zone during the majority of your workout. This will keep your heart rate at a level that will burn body fat and calories and also keeps your heart beating fast enough to gain cardiovascular health. Doing so means your heart and lung capacity can improve over time.

• Heart rate zones and exercise ability vary from person to person. Use this App as a guide. If you have any questions about your heart rate zones please consult your doctor. Also be sure to discuss any new exercise routine with your doctor before you begin.

What’s New

Version 1.0.1

Updates to support newer versions of iOS.

Ratings and Reviews

4.8 out of 5
16 Ratings

16 Ratings

fitGeek01 ,

Like it!

This app is a great time saver to be able to calculate karvonen heart rate training zones. There is also a lot of useful information in the app.

I have one small request..in my NASM book they go with 3 training zones: 65-75%, 76-85%, 86-95%. I'd like to see a setting option to make these the displayed zones because I will train clients based on these three zones!

Thanks for saving me the time of making this app ;)

DaSpoonerSF ,

An app that does all the THR calculation work for you

This app is great as it does all the work for you calculations for you. Although I use a separate spreadsheet to calculate where I want to train at, I do find this very handy to do a quick peak to remind me my HR target zones.

Mom o' 2 ,

Basic app that helps me with heart rate zones

My clients can download this and keep it with them to learn where their zones are for fat vs cardio and when to push through.

App Privacy

The developer, Andrew Arhelger, 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


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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