# HRV4Training vs Informed Sport

The clearest difference is price: Informed Sport at Free against HRV4Training's $9.99. Informed Sport also leads on rating (5.0 vs 3.6) and review sentiment (80% vs 61%). HRV4Training's advantage is ads (none vs shown) and ratings volume (289 vs 8). On in-app purchases, device support and iOS requirement there is nothing between them.

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

Informed Sport holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: HRV4Training has 289 ratings behind it against 8, 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 80% of Informed Sport's.

HRV4Training ships an update every 6 weeks, Informed Sport every 4 months. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | HRV4Training | Informed Sport |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.6 (289 ratings)](https://appshunter.io/ios/app/hrv4training/id686923970/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/informed-sport/id1536983929/reviews)** |
| Number of ratings | **289** | 8 |
| Positive reviews | 61.2% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | **#22** | — |
| Size | 35 MB | 43 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [A.S.M.A. B.V.](https://appshunter.io/developer/1066843463) | [NetMediaOne LLC](https://appshunter.io/developer/1439329669) |

## What reviewers say

### HRV4Training

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

**Currently charting:** #22 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


### Informed Sport

[App page](https://appshunter.io/ios/app/informed-sport/id1536983929)

Discover sports nutrition products rigorously tested for banned substances. Scan barcodes or search by name to find certified supplements that meet your training needs and ensure safety for athletes and drug-tested individuals.

**Highlights:** Scan product UPC or EAN codes, Search by product name, Filter by product type, goals, or location, Confirm batch testing results, Find certified sports nutrition products, View tested products for banned substances

**In-app purchases:** none


## Frequently asked questions

### Is HRV4Training free?

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

### Is Informed Sport free?

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

### Which has better reviews, HRV4Training or Informed Sport?

Informed Sport is rated higher. HRV4Training averages 3.6 out of 5 from 289 ratings, while Informed Sport averages 5.0 from 8 ratings.

### Do HRV4Training or Informed Sport have ads?

Informed Sport shows ads; HRV4Training does not.

### Which is updated more often, HRV4Training or Informed Sport?

HRV4Training ships an update every 6 weeks, and Informed Sport every 4 months. Most recently, HRV4Training was updated on October 23, 2026 and Informed Sport on October 10, 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.*