Comparison

HeartRateHub vs Zero

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HeartRateHub

This app helps runners train smarter by utilizing personalized heart rate zones. It integrates with Apple Watch to provide real-time feedback and allows for the creation of custom or pre-set interval workouts for improved endurance and speed.

Highlights
  • Custom heart rate zone creation
  • Flexible interval workout design
  • Predefined zone templates
  • Apple Watch real-time feedback
  • Speedometer-style visual display
  • Data-driven goal-oriented sessions
Features
Read full description

HeartRateHub: Precision Heart Rate Zone Training for Runners HeartRateHub is the go-to training app for runners who want to train smarter using heart rate zones. Seamlessly integrated with your Apple Watch, it transforms your workouts into data-driven, goal-oriented sessions that help improve endurance, speed, and recovery. Whether you are preparing for a race or simply want to make each run more effective, HeartRateHub gives you complete control over your heart rate-based training. Key Features Custom Heart Rate Zones Create personalized heart rate zones on your iPhone by setting durations and minimum and maximum BPMs. Align each workout to your fitness goals with precision. Flexible Workout Patterns Design interval workouts with multiple heart rate zones. Create structured routines with controlled warmups, challenging peaks, and effective cooldowns. Predefined Zone Templates Access a library of popular heart rate training patterns such as 30-20-10 intervals and Fartlek runs. Add them to your personal library to start training immediately. Apple Watch Integration All workouts sync automatically to your Apple Watch, delivering real-time feedback and alerts as you move between heart rate zones. Clear Visual Feedback Stay focused with a speedometer-style display on your Apple Watch. Instantly see how your current heart rate compares to your target zone. No Limits, Completely Free All features are available without a subscription or paywall. HeartRateHub is designed to be fully accessible to every runner looking to improve their training through heart rate guidance. Why Choose HeartRateHub HeartRateHub is more than a fitness tracker. It is a training companion built for those who value the power of precision. Unlike generic running apps, HeartRateHub allows you to create intricate heart rate-based workouts, follow elite training templates, and monitor your zone adherence in real-time. Whether you are an experienced runner or just starting to explore heart rate training, HeartRateHub gives you the tools to train with structure and intention. Download HeartRateHub today and experience the difference of training with clarity, focus, and complete control over your heart rate zones. Terms of service & privacy policy: https://basamasa.github.io/eula.html https://www.termsfeed.com/live/aab51974-f8da-4ee1-8c9d-4004367a3186

About

Zero

This app helps you manage stress by combining guided breathing exercises with real-time biometric data from your Apple Watch. It provides insights into your stress patterns and helps you schedule recovery moments to build resilience.

Highlights
  • Guided breathing exercises
  • Real-time biometric tracking (RHR, HRV)
  • Stress pattern analysis
  • Scheduled mindful breaks
  • Relaxation validation
  • Local data storage
Features
Read full description

Zero Rush — Your Relaxation Tracker Zero Rush helps you slow down, reset, and understand your stress. Combining guided breathing, real-time biometrics, and relaxation tracking, it gives you measurable insights into how your body responds to stress — so you can take control, not just calm down. Relaxation Tracker Discover what really helps you relax — massage, meditation, music, or silence. Track how your heart rate changes before and after each session to validate what actually works for you. Track Your Stress & Understand Your Patterns With Apple Watch, Zero Rush calculates your stress level using your latest Resting Heart Rate (RHR) and Heart Rate Variability (HRV). See when your stress increases, identify your triggers, and understand your patterns by time of day and day of the week. Breathe Better Use scientifically backed breathing methods like 4-7-8 or Box Breathing to reduce tension and improve focus. Customize your own breathing method and create the perfect rhythm for your daily breaks. Scheduled Breaks Plan your daily recovery moments. Set up smart reminders to take mindful breaks throughout the day, and reconnect with yourself for just a few minutes at a time. Privacy by Design Your data never leaves your device. Everything is stored locally and visible only to you. Zero Rush is not a medical device and does not provide diagnosis or treatment. It is intended for wellness and educational purposes only. Compatible with: iPhone & Apple Watch. Apple Watch unlocks live HRV, resting heart rate, and real-time stress tracking — Zero Rush also works without one. Stop guessing what calms you. Start knowing. Terms of Use: https://www.zero-rush.com/terms-of-use/ Privacy Policy: https://www.zero-rush.com/privacy-policy/ EULA: https://www.zero-rush.com/eula/

Screenshots

HeartRateHub4 screens
Zero4 screens

Verdict

The call

The clearest difference is update cadence: Zero at every 3 weeks against HeartRateHub's every 4 months. HeartRateHub's advantage is iOS requirement (16.0 vs 18.5). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HeartRateHub sells 3 in-app purchases, starting at $1.99 per 7 days and Zero sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HeartRateHub ships an update every 4 months, Zero every 3 weeks. The most recent releases landed on November 4, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
HeartRateHub versus Zero: the parameters behind the verdict, then further details
ParameterHeartRateHubZero
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS16.0 — better18.5
Further details — not scored
Size7 MB10 MB
Age rating4+4+
DeveloperEnzer ErkinCarlos Adiel Vega Lopez

Customer experience

HeartRateHub

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Zero

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

HeartRateHub

Subscriptions3
  • Weekly Subscription$1.997 Days
  • Monthly Subscription7 Days trial$3.991 Month
  • Yearly Subscription7 Days trial$24.991 Year
3 purchases

Zero

Subscriptions2
  • All Access – Monthly14 Days trial$1.991 Month
  • All Access – Yearly14 Days trial$19.991 Year
One-time1
  • Lifetime All Access$89.99

Questions

Is HeartRateHub free?
HeartRateHub is free to download, with in-app purchases available.
Is Zero free?
Zero is free to download, with in-app purchases available.
Do HeartRateHub or Zero have ads?
Neither HeartRateHub nor Zero shows ads.
Which is updated more often, HeartRateHub or Zero?
HeartRateHub ships an update every 4 months, and Zero every 3 weeks. Most recently, HeartRateHub was updated on November 4, 2026 and Zero on October 16, 2026.

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