Zx: Heart Rate Zones Training 4+

Interval Timer & HIIT Trainer

OverSphere LLC

    • 4.3 • 64 Ratings
    • Free
    • Offers In-App Purchases

Description

Zx is your personal heart rate coach designed to guide you through your interval training. Create your own interval workouts or download workouts created by the community. Official Zx workouts are updated regularly. Zx supports Apple Watch or any compatible stand alone bluetooth heart rate monitor.

◎ Benefits of HIIT:
- Weight loss
- Improve your body’s ability to burn fat
- Increase your anaerobic threshold
- Improve your vo2Max
- Improve performance in sports
- Feel better by releasing beta-endorphins
- More fun then steady state training!

◎ Integrates with the Health app to gain deep insight into your training:
- View relevant Heart Rate and Workout stats for Day, Week, and Month on the home screen
- See which zone your workout heart rate has spent the most time in to help you plan your next workout.

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App Features
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◎Open Mode (Apple Watch only):
- Not up for a guided session? Open session lets you see what Zone you’re in and how long you’ve been in it.
◎ Guided Interval Training
- Zx will help you stay in a specific zone for the right amount of time.
◎ Create custom workouts
- Studio lets you create custom guided training suited to your personal goals
◎ Download workouts created by other users
- See what other users have created, download and remix.

Health Disclaimer: Zx cannot treat or diagnose any medical condition. Zx is designed to push you to your maximum heart rate; while there shouldn’t be cause for concern with healthy individuals, always consult with your physician prior to starting any training regimen.

Subscription Terms: Your subscription automatically renews every month or year unless auto-renewal is turned off at least 24 hours before the end of the current subscription. 3 day free trial is provided for monthly subscriptions. You will be charged starting at $2.99 per month, depending on the subscription pack. Your account will be charged for a renewed subscription within 24 hours prior to the end of current subscription. You can manage your subscription and switch off the auto-renewal by accessing your iTunes account settings after purchase. You cannot cancel the current subscription during the active subscription period. Any unused part or time-span of a free trial period will be forfeited, as soon as you purchase a subscription. Buy subscribing, you affirm your agreement to our Terms of Use and Privacy Policy.

Terms of Use:
https://www.oversphere.net/terms-of-use/

Privacy Policy:
https://www.oversphere.net/privacy-policy/

What’s New

Version 1.7

- GOOOOOOOOOOOAAAALLLL! Add and track time spent in your target zone with this new feature.
- Fixed an issue where created and downloaded workouts would take a long time to sync to the Watch app.
- various bug fixes

Ratings and Reviews

4.3 out of 5
64 Ratings

64 Ratings

headquire ,

Swimming doesn't work

App is promising. While running and cycling work fine, logging a swimming workout fails. It says "Please allow Zx to 'Write Workout Data' in Health and try again.

By the way your support website is just a placeholder site. Might want to update that.

In addition to the above bug, to be useful during swimming, the alerts would have to be different patterns for above and below zone, and they'd have to be constant. For example, short quick vibrations if below zone and long slow vibrates if above zone. The same kind of constant and differentiated alerts would be useful in other situations (e.g. watch under your sleeve or glove) but especially in swimming when it's not practical to look at the watch face during a lap.

Developer Response ,

Hello headquire! Thanks for trying Zx. We are now aware of the pool swimming issue and are working on a fix for it. The issue is that we aren't setting a pool lap length for the workout so it can't be started. Hopefully we can get a fix for that soon.

Also! We're going to be developing an app dedicated solely to swimming and we appreciate your ideas. If you like to message us with any features or idea you'd find useful in a swimming app, we'd love to hear it! You can reach us at support@oversphere.net.

Best,
Jillian
OverSphere Support

PS thanks for letting us know about the website, it should now correctly again be redirecting to our Facebook page. :)

wingnut0000 ,

Like this app

4 stars. Would give 5 stars if the colored bars in the workout graph also displayed the target heart rate zones like the Polar Beat app. does.

Developer Response ,

Hi wingnut, thanks for the review! If you could reach out to support@oversphere.net with more details about your feature request, we may be able to get it into a future update.

Best,
Jillian
OverSphere Support

Nats7665! ,

Fantastic app!

I was looking for an interval timer for my own HIIT training that could also pair with my coros armband to show my heart rate.

Paying $14 for this app seemed like a no-brainer when the cheapest watch I could find to show my heart rate was $180. Now I get to see my interval timer and heart rate in the one place. It works perfectly with my coros armband and make sure I stay in the zone during night intensity intervals (while not pushing too hard above my range). Thanks for making such an intuitive and affordable app with great functionality.

Developer Response ,

Thanks Nats7665! So happy you’re enjoying Zx 🤗. If you ever have any issues or feature requests, please don’t hesitate to reach out to support@oversphere.net.

Best,
Jillian
OverSphere Support

App Privacy

The developer, OverSphere LLC, 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 Linked to You

The following data may be collected and linked to your identity:

  • User Content

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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