Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

HRZones Screenshots

iPad

iPhone

About HRZones

HR Zones is a simple to use heart rate training zone calculator. All you need to do is pick your date of birth, and it will calculate the five distinct heart rate zones for different types of training outcomes based on the percentage of your maximum heart rate.

Your estimated maximum heart rate is calculated as 220 less your age as per the following resource https://www.cdc.gov/physicalactivity/basics/measuring/heartrate.htm#:~:text=You%20can%20estimate%20your%20maximum,beats%20per%20minute%20(bpm).

It is very important to consult your general practitioner before undertaking any sort of exercise to ensure that you are medically fit to do so. This is a simple calculator, not a replacement for sound medical advice, so please treat your health with the caution and respect that it deserves.

What's New in the Latest Version 2023.10.11

Last updated on Oct 11, 2023

Old Versions

Updated to iOS 17.0!

Version History

2023.10.11

Oct 11, 2023

Updated to iOS 17.0!

2023.05.28

May 28, 2023

Updated to iOS 16.4.

2022.10.01

Oct 7, 2022

Updated to iOS 16, and removed the multiple models for calculating the Maximum Heart Rate (a single model is used as per the link provided https://www.cdc.gov/physicalactivity/basics/measuring/heartrate.htm#:~:text=You%20can%20estimate%20your%20maximum,beats%20per%20minute%20(bpm)

2021.09.30

Sep 30, 2021

Updated to iOS 15.0!

2021.01.04

Jan 5, 2021

Updated to iOS 14.3!

2020.09.20

Sep 20, 2020

Updated to iOS 14!

1.4

Feb 7, 2020

Updated to iOS 13.2.

1.3

Oct 4, 2019

Updated to iOS 13 and added Dark Mode!

1.2

Feb 9, 2019

I've added Discovery's Vitality as a choice which is essentially the same as male under the existing model, which means that both males and females can use this choice. I've also changed the design minimally, but I hope it will look a little nicer!

1.1

Sep 17, 2018

Updated for iOS 12!

1.0

Jul 16, 2018

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