ZoneSteady: Heart Rate Zones

ZoneSteady: Heart Rate Zones

Heart Rate & Hybrid Workouts

2 ratings
2 reviews
Free
With Ads

Details

  • Released
  • Updated
  • March 16, 2026
  • September 14, 2026

Features

ZoneSteady: Heart Rate Zones screenshot #1 for iPhone
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ZoneSteady: Heart Rate Zones screenshot #10 for iPhone
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About

This app displays your real-time heart rate zones from your Apple Watch on your iPhone. It offers customizable zones, supports 17 workout types, and saves your workout history. All features are available for free.

Real-time heart rate streaming
Color-coded training zones
Customizable zone boundaries
17 workout types supported
Workout history tracking
Native Apple Watch app
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What's New in ZoneSteady

1.1.2

September 14, 2026

### What’s New in Version 1.1.2 - **Customize race simulations:** Edit Full Race Sim and Half Sim before starting—change run distances, swap HYROX or DEKA FIT stations, and add, remove, or reorder legs without changing the original presets. - **Clearer workout controls:** Hybrid Race and Custom Workout buttons now show exactly what comes next, such as “End Run 1” and “Start Ski Erg,” in portrait and landscape. - **More reliable Apple Watch connections:** Improved workout startup, automatic connection after opening the Watch app, and back-to-back workout handling. - **Better workout synchronization:** Improved phone/Watch timing and recovery from delayed connections, keeping the correct Hybrid controls visible. - **Startup and cancellation fixes:** Connection waiting time is excluded from workout duration, and cancelled starts won’t unexpectedly launch later.

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User reviews

Great for Hyrox Training

I used to wear a heart rate monitor but would always forget to put it on before I went to the gym. I always wear my Apple Watch so this app was super helpful when I didn’t have my heart rate monitor that I would wear. It was so good I ended up ditching my wearable monitor and just using this app instead. I love how I can simply look down at my watch and phone and know what zone I was in based on the color.
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ZoneSteady is a must have!

ZoneSteady has been an excellent tool for helping me stay focused and consistent with heart rate zone training. The app is easy to use, accurate, and makes tracking workouts simple and motivating. I especially like how clearly it displays heart rate zones during training, helping me stay on target and improve performance without overtraining. Whether you’re a beginner or an experienced athlete, I highly recommend ZoneSteady to anyone serious about endurance, fitness, or structured training.
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Developer apps

FAQ

Does ZoneSteady have ads?

Yes, ZoneSteady contains advertisements. The app is free to use and provides professional-grade training tools without a subscription.

What devices is ZoneSteady compatible with?

ZoneSteady requires an Apple Watch Series 3 or later with watchOS 10+ and an iPhone with iOS 17+. It also integrates with the Apple Health app.

How does ZoneSteady calculate heart rate zones?

ZoneSteady uses the Karvonen formula to calculate 5 color-coded training zones. Users can also manually override and personalize zone boundaries with custom BPM thresholds.

Can I start workouts from my iPhone with ZoneSteady?

Yes, you can start workouts directly from your iPhone or your Apple Watch. The app supports 17 different workout types, including running, cycling, and HIIT.

What information is saved in my workout history?

Every workout session is automatically saved with details on duration, calories burned, distance, and a breakdown of time spent in each heart rate zone. A visual timeline shows your effort throughout the session.

Is ZoneSteady completely free to use?

Yes, ZoneSteady is 100% free. There are no subscriptions, paywalls, or trial periods required to access its professional-grade training tools.

How often is ZoneSteady updated?

The latest version of ZoneSteady is 1.1.2, and it was last updated on September 14, 2026. Updates typically include new features, bug fixes, and performance improvements.

What is the age rating for ZoneSteady?

ZoneSteady has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.