# Heart Graph vs Zone Vibrate

The clearest difference is in-app purchases: Zone Vibrate at none against Heart Graph's 2. Zone Vibrate also leads on update cadence (weekly vs every 2 weeks). Heart Graph's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Heart Graph sells 2 one-off in-app purchases. Zone Vibrate asks for nothing beyond the download.

Heart Graph ships an update every 2 weeks, Zone Vibrate weekly. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Heart Graph | Zone Vibrate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.2K ratings)](https://appshunter.io/ios/app/heart-graph/id591655999/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 86.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Smoky Cat Software Ltd.](https://appshunter.io/developer/508703406) | [Chan Bill](https://appshunter.io/developer/506424571) |

## What reviewers say

### Heart Graph

[App page](https://appshunter.io/ios/app/heart-graph/id591655999)

Track your heart rate in real-time and analyze trends over time. Understand your body's response to training and general health with detailed graphs and statistics. Import data from Apple Health for a comprehensive view of your fitness journey.

**Highlights:** Real-time heart rate graphing, Apple Health integration, Session comparison and statistics, Heart rate zone analysis, Planned workout design, Heart rate alarms, Background data recording

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Ad-Free Software | $0.99 | one-time |
| Premium Features | $2.99 | one-time |

**What reviewers like**

- 👍 Excellent for heart rate monitoring
- 🚀 Reliable and accurate data
- 💡 Customizable heart rate zones
- 🔒 No data collection or ads
- 👍 Simple and intuitive interface

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🐛 Calorie calculations can be inaccurate
- 🔋 Battery drain on some devices
- 👎 Limited free version, premium features require payment

**Reported bugs**

- Workouts not always syncing correctly
- App crashes or freezes on some devices

**Requested features**

- Add minimum heart rate to metrics
- Integrate with more fitness apps and devices
- Improve customization options for workout labels
- Display heart rate on the workout selection screen


### Zone Vibrate

[App page](https://appshunter.io/ios/app/zone-vibrate/id6447105020)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Heart Graph free?

Heart Graph is free to download, with in-app purchases available.

### Is Zone Vibrate free?

Zone Vibrate is free to download, with no in-app purchases.

### Do Heart Graph or Zone Vibrate have ads?

Neither Heart Graph nor Zone Vibrate shows ads.

### Which is updated more often, Heart Graph or Zone Vibrate?

Heart Graph ships an update every 2 weeks, and Zone Vibrate weekly. Most recently, Heart Graph was updated on October 20, 2026 and Zone Vibrate on October 6, 2026.

---

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