# Optimal HRV vs Absolute Rest

The clearest difference is rating: Absolute Rest at 3.7 against Optimal HRV's 3.0. Absolute Rest also leads on in-app purchases (none vs 3). Optimal HRV's advantage is ratings volume (24 vs 3) and iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Optimal HRV sells 3 in-app purchases, starting at $9.99 per month. Absolute Rest asks for nothing beyond the download.

Absolute Rest holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: Optimal HRV has 24 ratings behind it against 3, so its average is the more settled of the two.

Optimal HRV ships an update fortnightly, Absolute Rest every 3 weeks. The most recent releases landed on September 21, 2026 and July 31, 2026 respectively.

## The numbers

| Metric | Optimal HRV | Absolute Rest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (24 ratings)](https://appshunter.io/ios/app/optimal-hrv-biofeedback/id1501292206/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/absolute-rest/id6475053795/reviews)** |
| Number of ratings | **24** | 3 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 52 MB | 41 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Optimal, LLC](https://appshunter.io/developer/1501292205) | [Absolute Rest, Inc](https://appshunter.io/developer/1723237362) |

## What reviewers say

### 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 |


### Absolute Rest

[App page](https://appshunter.io/ios/app/absolute-rest/id6475053795)

This app provides a comprehensive sleep management program using an FDA-cleared testing system to analyze sleep patterns through the autonomic nervous system. It offers personalized insights and expert support to improve sleep quality and daytime performance.

**Highlights:** Comprehensive sleep assessment, Autonomic nervous system testing, Personalized insights and expert support, User-friendly app interface, Continuous monitoring of sleep parameters

**In-app purchases:** none


## Frequently asked questions

### Is Optimal HRV free?

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

### Is Absolute Rest free?

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

### Which has better reviews, Optimal HRV or Absolute Rest?

Absolute Rest is rated higher. Optimal HRV averages 3.0 out of 5 from 24 ratings, while Absolute Rest averages 3.7 from 3 ratings.

### Do Optimal HRV or Absolute Rest have ads?

Neither Optimal HRV nor Absolute Rest shows ads.

### Which is updated more often, Optimal HRV or Absolute Rest?

Optimal HRV ships an update fortnightly, and Absolute Rest every 3 weeks. Most recently, Optimal HRV was updated on September 21, 2026 and Absolute Rest on July 31, 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.*