# Heart Analyzer vs Sleep Details

The clearest difference is review sentiment: Heart Analyzer at 84% against Sleep Details's 50%. Heart Analyzer also leads on update cadence (weekly vs every 2 months) and rating (4.7 vs 4.4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Heart Analyzer sells 7 in-app purchases, starting at $3.99 per month and Sleep Details sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Heart Analyzer holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Heart Analyzer has 22K ratings behind it against 1.1K, so its average is the more settled of the two. Written reviews point the same way: 84% of Heart Analyzer's written reviews are positive against 50% of Sleep Details's.

Heart Analyzer ships an update weekly, Sleep Details every 2 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Heart Analyzer | Sleep Details |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (22K ratings)](https://appshunter.io/ios/app/heart-analyzer-pulse-tracker/id1006420410/reviews)** | [4.4 (1.1K ratings)](https://appshunter.io/ios/app/sleep-details/id1534838758/reviews) |
| Number of ratings | **22K** | 1.1K |
| Positive reviews | **84.2% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 29 MB |
| Requires iOS | **17.5** | 18 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Helix Apps LTD](https://appshunter.io/developer/1479527439) | [Sydvesti Oy](https://appshunter.io/developer/912783647) |

## What reviewers say

### Heart Analyzer

[App page](https://appshunter.io/ios/app/heart-analyzer-pulse-tracker/id1006420410)

Gain deep insights into your heart health using data from your Apple Watch. Visualize trends, analyze metrics like Cardio Recovery and Heart Rate Zones, and generate detailed PDF reports. Offers advanced features and privacy-focused data handling.

**Highlights:** Dashboard with daily summaries, Visualized heart rate and health data charts, Health vital trend assessment, Cardio Recovery and Heart Rate Zone analysis, Exportable PDF heart reports, ECG data comparison, HRV rMSSD and heart rate calibration

**Features:** Family Sharing, Apple Watch app

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annual | $24.99 | per year |
| Data Plus | $9.99 | one-time |
| Reports Plus | $9.99 | one-time |
| Analytics Plus | $9.99 | one-time |
| Complete Premium | $24.99 | one-time |
| Lifetime Access | $49.99 | one-time |

**What reviewers like**

- 🚀 Great app for health monitoring
- 👍 Packed with useful information
- 🚀 Excellent visualizations and charts
- 👍 Easy to use and understand
- 👍 Helpful for monitoring heart conditions

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔋 Drains Apple Watch battery
- 🔍 Needs more explanation of metrics
- 🔍 Visuals could be improved for easier reading
- 🔍 Automatic updates to complications not reliable

**Reported bugs**

- Premium features not working as expected
- Syncing issues between iPhone and Apple Watch
- Oxygen level tracking not functioning properly

**Requested features**

- Add blood pressure monitoring
- Allow generating reports for current month
- Improve ECG interpretation guidance
- Add option to customize Apple Watch complications


### Sleep Details

[App page](https://appshunter.io/ios/app/sleep-details/id1534838758)

Track your sleep data and receive a daily sleep score based on information from your Apple Watch. Gain insights into sleep stages, heart rate, and more, with personalized ratings and factor tagging. Features a memory test and daily summaries for enhanced understanding of your sleep's impact.

**Highlights:** Daily sleep score, Detailed sleep metrics, Personalized sleep rating, Sleep factor tagging, Morning notifications, Memory test, Daily sleep summaries

**Features:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.99 | per month |
| Yearly subscription | $29.99 | per year |
| Lifetime Access | $59.99 | one-time |

**What reviewers like**

- 👍 Great interface
- 👍 Helpful for understanding sleep
- 👍 Good for blind users

**What reviewers complain about**

- 🐛 App not working/tracking properly
- 🐛 Sleep time/data inaccurate
- 🔒 Subscription/payment issues
- 🔋 Drains battery

**Reported bugs**

- Sleep stage section disappeared
- App keeps kicking user out
- Widget doesn't update with current data

**Requested features**

- Add ability to log naps
- Improve widget updates
- Provide more explanation of sleep metrics
- Implement REM sleep tracking


## Frequently asked questions

### Is Heart Analyzer free?

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

### Is Sleep Details free?

Sleep Details is free to download, with in-app purchases available.

### Which has better reviews, Heart Analyzer or Sleep Details?

Heart Analyzer is rated higher. Heart Analyzer averages 4.7 out of 5 from 22K ratings, while Sleep Details averages 4.4 from 1.1K ratings.

### Do Heart Analyzer or Sleep Details have ads?

Neither Heart Analyzer nor Sleep Details shows ads.

### Which is updated more often, Heart Analyzer or Sleep Details?

Heart Analyzer ships an update weekly, and Sleep Details every 2 months. Most recently, Heart Analyzer was updated on October 29, 2026 and Sleep Details on October 24, 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.*