# HRV4Training vs APEX

The clearest difference is price: APEX at Free against HRV4Training's $9.99. HRV4Training's advantage is chart position (#18 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

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

HRV4Training ships an update every 6 weeks, APEX every 5 weeks. The most recent releases landed on September 24, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | HRV4Training | APEX |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[3.6 (288 ratings)](https://appshunter.io/ios/app/hrv4training/id686923970/reviews)** | — |
| Number of ratings | **288** | — |
| Positive reviews | 61.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#18** | — |
| Size | 35 MB | 6 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [A.S.M.A. B.V.](https://appshunter.io/developer/1066843463) | [Maximilian Jones](https://appshunter.io/developer/1879820957) |

## What reviewers say

### HRV4Training

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

**Currently charting:** #18 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


### APEX

[App page](https://appshunter.io/ios/app/apex-athlete/id6759615504)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HRV4Training free?

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

### Is APEX free?

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

### Do HRV4Training or APEX have ads?

Neither HRV4Training nor APEX shows ads.

### Which is updated more often, HRV4Training or APEX?

HRV4Training ships an update every 6 weeks, and APEX every 5 weeks. Most recently, HRV4Training was updated on September 24, 2026 and APEX on September 13, 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.*