# HRV4Training vs SORCE App

The clearest difference is price: SORCE App at Free against HRV4Training's $9.99. SORCE App also leads on rating (5.0 vs 3.6) and update cadence (every 10 days vs every 6 weeks). HRV4Training's advantage is ratings volume (290 vs 13) and chart position (#23 vs unranked). On ads, in-app purchases and device support there is nothing between them.

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

SORCE App holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: HRV4Training has 290 ratings behind it against 13, so its average is the more settled of the two.

HRV4Training ships an update every 6 weeks, SORCE App every 10 days. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | HRV4Training | SORCE App |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.6 (290 ratings)](https://appshunter.io/ios/app/hrv4training/id686923970/reviews) | **[5.0 (13 ratings)](https://appshunter.io/ios/app/sorce-app/id1579387289/reviews)** |
| Number of ratings | **290** | 13 |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Paid | **Free** |
| Best chart rank | **#23** | — |
| Size | 35 MB | 82 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [A.S.M.A. B.V.](https://appshunter.io/developer/1066843463) | [sorce.io](https://appshunter.io/developer/1565186411) |

## What reviewers say

### HRV4Training

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

**Currently charting:** #23 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


### SORCE App

[App page](https://appshunter.io/ios/app/sorce-app/id1579387289)

This app uses your physical and behavioral data to provide personalized health and performance coaching. It offers energetic and emotionally perceptive communication, diverse content, and access to expert coaches for individuals, teams, and organizations.

**Highlights:** Personalized health and performance coaching, Physical and behavioral data capture, Energetically and emotionally perceptive communication, Access to world-class coaches, Content variety, Team and organizational coaching

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HRV4Training free?

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

### Is SORCE App free?

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

### Which has better reviews, HRV4Training or SORCE App?

SORCE App is rated higher. HRV4Training averages 3.6 out of 5 from 290 ratings, while SORCE App averages 5.0 from 13 ratings.

### Do HRV4Training or SORCE App have ads?

Neither HRV4Training nor SORCE App shows ads.

### Which is updated more often, HRV4Training or SORCE App?

HRV4Training ships an update every 6 weeks, and SORCE App every 10 days. Most recently, HRV4Training was updated on October 26, 2026 and SORCE App on October 21, 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.*