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HR Zones

HR Zones

Train with heart-rate zones

2 ratings
1 review
🔧 Utilities
⚽ Sports
$0.99

Details

  • Released
  • Updated
  • July 28, 2018
  • September 21, 2026

Features

Developer

Joao Frasco
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About

This app calculates personalized heart rate training zones based on your age, gender, and resting heart rate. It offers multiple calculation methods for accuracy and provides detailed information for each zone to help optimize workouts.

✓Multiple heart rate calculation methods
✓Personalized five training zones
✓Detailed zone information
✓Karvonen formula support
✓Gender-specific recommendations
✓Color-coded zones with icons
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What's New in HR Zones

2026.09.16

September 21, 2026

HR Zones, rebuilt from the ground up. • Guided setup, multiple athlete profiles, and calculation history • New Train tab: goals, a time-in-zone planner, and a multi-segment zone timer with Live Activity • Optional Apple Health: import resting HR for Karvonen zones and see your workouts in zones — all on device • Private Coach: educational tips, using on-device Apple Intelligence when available • Home Screen and Lock Screen widgets, plus Siri & Shortcuts • Share your zones as text or an image • Fresh design and new app icon, with VoiceOver and Dynamic Type support • New: HR Zones Pro, an optional one-time in-app purchase. The zone calculator needs no extra purchase.

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User reviews

Most RecentHighest RatedLowest Rated

Great app thanks to a responsive developer

Was looking for an HR app that would allow me at a glance to see my HR zones, eg, while running on a treadmill. Downloaded this and was disappointed at first. Aesthetically it had a pleasing appearance and good customizability within the settings. BUT, some of the screen was cutoff on my iPhone Mini 13. What was worse was that the way screen elements were rendered, I couldn’t enter my birthdate- making the HR calculation useless.

I emailed the developer- around New Year’s Eve- and (1) got a response quickly, and (2) he developed a bug fix 2 days after and emailed me to let me know. I just downloaded it and it works perfectly now. Best HR app for my needs, and I’m super impressed with the developer’s support.

Highly recommended.
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FAQ

What is HRZones?

HRZones is a mobile application designed to calculate your personalized heart rate training zones. It uses your personal data and various calculation methods to provide precise BPM ranges for optimal workout guidance.

How does HRZones calculate training zones?

HRZones calculates training zones using your date of birth and selected calculation method. It can also incorporate your resting heart rate to enable the Karvonen formula for more personalized results.

What calculation methods does HRZones offer?

HRZones supports multiple calculation methods including Standard (220 - age), Tanaka, Gulati (optimized for women), and a Custom option where you can enter your own maximum heart rate from a stress test.

Can HRZones be used by women?

Yes, HRZones includes the Gulati formula, which is optimized for women, and allows for gender selection with automatic formula recommendations.

Does HRZones have ads?

No, HRZones does not contain advertisements. It is a paid application that offers an ad-free experience.

What devices is HRZones available on?

HRZones is available on iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

How often is HRZones updated?

The latest version of HRZones is 2026.01.01, which was last updated on January 2, 2026. Updates typically focus on improving features and ensuring compatibility.

What is the price of HRZones?

HRZones is a paid application priced at $0.99. This one-time purchase grants you access to all its features without any recurring fees or in-app purchases.