Zx: Heart Rate Zones Training

🇺🇸 United States
OverSphere LLC  | 
47
ASO score
Text
45/100
Reviews
50/100
Graphic
60/100
Other
0/100
rating
App Rating
4.2
rating
Votes
161
rating
App Age
6y 1m
rating
Last Update
Sep 19, 2024
rating
iAP
$0.99 - 24.99

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Rating
4.22
4.68
-10%
Number of Ratings (Voted)
160
832.2K
-100%
App Age
6y 0m
9y 2m
-34%
In-app Purchases Price
$13
$49
-73 %
Update Frequency
479d
19d
+2 437%
Title Length
29
26
+12%
Subtitle Length
29
28
+4%
Description Length
2 518
3 242
-22%
Number of Screenshots
1014
1527
-34 %
Size
51MB
351MB
-86 %

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Ranking Keywords in United States

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Text ASO

Title (
Characters: 29 of 30
)
Zx: Heart Rate Zones Training
Subtitle (
Characters: 29 of 30
)
Interval Timer & HIIT Trainer
Description (
Characters: 2518 of 4000
)
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. ——————-—- App Features ———————— ◎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/}
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Visual ASO

Screenshots

Rating & Reviews

Reviews Overview
🧐 Coming Soon…
Rating
4.2
161 voters

Some Latest Reviews

Rik_music
20 Oct, 2025
1
Bought the pro version. Keeps on crashing when I want to save my progress after a workout. After restart my progress is gone.
rfgwyu2)2
16 Jun, 2025
1
Das ausgewählte Training dauert angeblich 42min, nach einer Stunde steht da noch immer 29min übrig. Herzfrequenz scheint nicht durchgehend gemessen zu werden, wenn kein Training aus der Fitness App gestartet ist, darum natürlich auch nicht sinnvoll. Ich tu mir auch schwer einige der sehr kleinen Anzeigen während des Laufens zu lesen. Die Idee ist gut aber allein wegen den ersten beiden Punkte ist die App leider aktuell nicht zu gebrauchen.
TurvoLevo
14 May, 2025
5
La aplicación debe reportar sus datos a Apple salud para llevar la estadística de los círculos
pasifikk
23 Apr, 2025
1
Every time I try to add distance it crashes. (Indoor cycling, own exercise)
Biltzzz
20 Oct, 2023
1
I got this app thinking it would give me realtime workout info on what zone I am in and for how many minutes. It’s just like all the other apps. you can only see what zone you are in at that exact moment. It’s not realtime info (the kind you can use to guide your workout
Inddark
07 Jun, 2023
2
I contacted support about the zone categories double the amount of time I worked out in each zone. I sent a screen shot showing that I worked out 6 minutes in the intensity zone according to my custom heart rate and it recorded over 12 minutes. I requested help and the answer was “crickets”…I’ve been totally ghosted. I would have rated the app a 4 star, otherwise.
Nero.MG
28 Mar, 2021
5
Habe schon als nach einer App gesucht, mit der ich den Puls besser prüfen kann als mit der FitnessApp und bin mit dieser in Verbindung mit der Watch 5 und dem iPhone XR sehr zufrieden.
Michsuedg
29 Jan, 2021
5
Watch complication of Z Score please The Zx score on the watch doesn’t match with the fitness level. For example, if I change to level 1, the iPhone app seems to be always at level 3. Please fix, thank you.
jo@k
23 Jan, 2021
5
Suite a mon mail le problème a été résolu le soir même j’ai donc pris l’abonnement à vis sur le champ équipe réactive qui on répondu à mon mail dans les plus brefs délais bravo pour votre travail et merci à toutes l’équipe satisfait a 100%

Other

Additional Information
Rating:
4.24
Voted: 161
App Store Link:
Website:
Email: -
Privacy Policy:
Categories: Health & Fitness, Lifestyle
Size: 50MB
iAP: 0.99 - 24.99 $
App Age: 6 years 1 month
Release Date: Dec 22, 2019
Last Update: Sep 19, 2024
Version: 1.7
Version history
1.7
Sep 19, 2024
- 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
1.6.1
Aug 09, 2024
- 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
Version history