# HeartRateHub vs Zero

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.

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.

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.

## The numbers

| Metric | HeartRateHub | Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zero-rush/id6753113382/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 7 MB | 10 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Enzer Erkin](https://appshunter.io/developer/1545061957) | [Carlos Adiel Vega Lopez](https://appshunter.io/developer/1842567782) |

## What reviewers say

### HeartRateHub

[App page](https://appshunter.io/ios/app/heartratehub/id6477622582)

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:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly Subscription | $3.99 | per month |
| Yearly Subscription | $24.99 | per year |


### Zero

[App page](https://appshunter.io/ios/app/zero-rush/id6753113382)

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:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access – Monthly | $1.99 | per month |
| All Access – Yearly | $19.99 | per year |
| Lifetime All Access | $89.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*