# HRV4Training vs Optimal HRV

The clearest difference is price: Optimal HRV at Free against HRV4Training's $9.99. Optimal HRV also leads on update cadence (fortnightly vs every 6 weeks) and iOS requirement (13.0 vs 15.6). HRV4Training's advantage is review sentiment (61% vs 17%) and rating (3.6 vs 3.0). On ads and device support there is nothing between them.

Optimal HRV is free to download; HRV4Training costs $9.99 up front. Optimal HRV sells 3 in-app purchases, starting at $9.99 per month. HRV4Training asks for nothing beyond the download.

HRV4Training holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: HRV4Training has 288 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 61% of HRV4Training's written reviews are positive against 17% of Optimal HRV's.

HRV4Training ships an update every 6 weeks, Optimal HRV fortnightly. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | HRV4Training | Optimal HRV |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[3.6 (288 ratings)](https://appshunter.io/ios/app/hrv4training/id686923970/reviews)** | [3.0 (24 ratings)](https://appshunter.io/ios/app/optimal-hrv-biofeedback/id1501292206/reviews) |
| Number of ratings | **288** | 24 |
| Positive reviews | **61.2% of reviews** | 16.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#30** | — |
| Size | 35 MB | 52 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [A.S.M.A. B.V.](https://appshunter.io/developer/1066843463) | [Optimal, LLC](https://appshunter.io/developer/1501292205) |

## What reviewers say

### HRV4Training

[App page](https://appshunter.io/ios/app/hrv4training/id686923970)

**Currently charting:** #30 Top Paid · Health & Fitness (US App Store)

Quantify stress, balance training and lifestyle, and improve performance with scientifically validated heart rate variability insights. This app accurately assesses HRV using your phone's camera or compatible devices, offering actionable interpretations for optimizing your training plan.

**Highlights:** HRV-based stress quantification, Training and lifestyle balance, Performance improvement insights, Camera-based HRV assessment, Integration with wearables, Training load analysis, VO2max and Lactate Threshold estimation

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Accurate HRV measurements
- 🚀 Straightforward and easy to use
- 💡 Provides valuable insights for training and recovery
- 👍 Integrates well with other fitness apps
- 👍 Responsive and helpful developer support

**What reviewers complain about**

- 🐛 Inconsistent readings and technical issues
- 🔒 Requires user account and data sharing
- 🔒 Concerns about data privacy
- 🔋 Drains battery when using camera for measurements

**Reported bugs**

- App crashes frequently, especially with iOS updates
- Syncing issues with Strava, TrainingPeaks, and Apple Health
- Camera-based measurements often unreliable or inconsistent

**Requested features**

- Allow multiple measurements per day
- Improve integration with Apple Watch and other wearables
- Add more customization options and data visualization
- Expand support for non-athletic use cases


### Optimal HRV

[App page](https://appshunter.io/ios/app/optimal-hrv-biofeedback/id1501292206)

Monitor, analyze, and improve your Heart Rate Variability (HRV) scores. This app offers personalized training, biofeedback, and stress-reducing activities to enhance health, reduce stress, and improve mental clarity.

**Highlights:** Real-time HRV monitoring, Personalized training plans, Guided meditation and breathing exercises, Comprehensive data analysis, Stress response insights, Biofeedback optimization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $9.99 | per month |
| 6 Month | $47.99 | per 6 months |
| One Year | $59.99 | per year |


## Frequently asked questions

### Is HRV4Training free?

HRV4Training costs $9.99, with no in-app purchases.

### Is Optimal HRV free?

Optimal HRV is free to download, with in-app purchases available.

### Which has better reviews, HRV4Training or Optimal HRV?

HRV4Training is rated higher. HRV4Training averages 3.6 out of 5 from 288 ratings, while Optimal HRV averages 3.0 from 24 ratings.

### Do HRV4Training or Optimal HRV have ads?

Neither HRV4Training nor Optimal HRV shows ads.

### Which is updated more often, HRV4Training or Optimal HRV?

HRV4Training ships an update every 6 weeks, and Optimal HRV fortnightly. Most recently, HRV4Training was updated on October 17, 2026 and Optimal HRV on October 8, 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.*