# HRV4Training vs Morpheus Training

The clearest difference is price: Morpheus Training at Free against HRV4Training's $9.99. Morpheus Training also leads on rating (4.9 vs 3.6) and update cadence (every 11 days vs every 6 weeks). HRV4Training's advantage is chart position (#37 vs unranked). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Morpheus Training is free to download; HRV4Training costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Morpheus Training holds the better App Store score, 4.9 against 3.6. Both are backed by a comparable volume of ratings — 288 and 630 respectively. Written reviews complicate that: 61% of HRV4Training's written reviews are positive against 58% of Morpheus Training's, so the app with the better star average is not the one people write more warmly about.

HRV4Training ships an update every 6 weeks, Morpheus Training every 11 days. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | HRV4Training | Morpheus Training |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.6 (288 ratings)](https://appshunter.io/ios/app/hrv4training/id686923970/reviews) | **[4.9 (630 ratings)](https://appshunter.io/ios/app/morpheus-training/id1259741445/reviews)** |
| Number of ratings | 288 | **630** |
| Positive reviews | **61.2% of reviews** | 58.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 11 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#37** | — |
| Size | 35 MB | 71 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [A.S.M.A. B.V.](https://appshunter.io/developer/1066843463) | [Morpheus Labs INC](https://appshunter.io/developer/1259741444) |

## What reviewers say

### HRV4Training

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

**Currently charting:** #37 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


### Morpheus Training

[App page](https://appshunter.io/ios/app/morpheus-training/id1259741445)

This app optimizes cardio training and recovery by providing personalized heart rate zones and weekly targets. It uses HRV data to guide intensity and volume, helping users improve fitness and conditioning with zone-based interval training.

**Highlights:** Personalized heart rate zones, CardioSmart features, Zone-based interval training (ZBIT), Weekly heart rate zone targets, Daily recovery score, Integrates with wearables and Apple Health Kit

**In-app purchases:** none


## Frequently asked questions

### Is HRV4Training free?

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

### Is Morpheus Training free?

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

### Which has better reviews, HRV4Training or Morpheus Training?

Morpheus Training is rated higher. HRV4Training averages 3.6 out of 5 from 288 ratings, while Morpheus Training averages 4.9 from 630 ratings.

### Do HRV4Training or Morpheus Training have ads?

Neither HRV4Training nor Morpheus Training shows ads.

### Which is updated more often, HRV4Training or Morpheus Training?

HRV4Training ships an update every 6 weeks, and Morpheus Training every 11 days. Most recently, HRV4Training was updated on October 13, 2026 and Morpheus Training on October 11, 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.*