# Heart Graph vs Heartool

The clearest difference is review sentiment: Heart Graph at 87% against Heartool's 21%. Heart Graph also leads on rating (4.5 vs 3.1) and update cadence (every 2 weeks vs every 4 months). Heartool's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.0). On price and ads there is nothing between them.

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

Heart Graph holds the better App Store score, 4.5 against 3.1. That said, the two scores are not equally well evidenced: Heart Graph has 1.2K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 87% of Heart Graph's written reviews are positive against 21% of Heartool's.

Heart Graph ships an update every 2 weeks, Heartool every 4 months. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Heart Graph | Heartool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.2K ratings)](https://appshunter.io/ios/app/heart-graph/id591655999/reviews)** | [3.1 (14 ratings)](https://appshunter.io/ios/app/heartool/id1567361608/reviews) |
| Number of ratings | **1.2K** | 14 |
| Positive reviews | **86.5% of reviews** | 21.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 24 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Smoky Cat Software Ltd.](https://appshunter.io/developer/508703406) | [Shenzhen Onecoder Technology Co., Ltd.](https://appshunter.io/developer/1131107345) |

## 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


### Heartool

[App page](https://appshunter.io/ios/app/heartool/id1567361608)

Transform your phone into a fitness tracker to monitor workouts with live heart rate data. Analyze training progress with professional charts and gain insights into your health and cardio condition. Integrates with wearable devices and Apple Health.

**Highlights:** Live heart rate tracking, HRV biofeedback, Cardio health analysis, Workout progress charts, Calorie burned tracking, Health data synchronization

**In-app purchases:** none


## Frequently asked questions

### Is Heart Graph free?

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

### Is Heartool free?

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

### Which has better reviews, Heart Graph or Heartool?

Heart Graph is rated higher. Heart Graph averages 4.5 out of 5 from 1.2K ratings, while Heartool averages 3.1 from 14 ratings.

### Do Heart Graph or Heartool have ads?

Neither Heart Graph nor Heartool shows ads.

### Which is updated more often, Heart Graph or Heartool?

Heart Graph ships an update every 2 weeks, and Heartool every 4 months. Most recently, Heart Graph was updated on September 24, 2026 and Heartool on September 18, 2026.

---

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