# Absolute Rest vs Phaes

The clearest difference is in-app purchases: Absolute Rest at none against Phaes's 4. Phaes's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Phaes sells 4 in-app purchases, starting at $3.99 per month. Absolute Rest asks for nothing beyond the download.

Absolute Rest ships an update every 3 weeks, Phaes every 9 days. The most recent releases landed on September 18, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Absolute Rest | Phaes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/absolute-rest/id6475053795/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 41 MB | 51 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Absolute Rest, Inc](https://appshunter.io/developer/1723237362) | [Silver Mountain Technologies, LLC](https://appshunter.io/developer/1827473089) |

## What reviewers say

### 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


### Phaes

[App page](https://appshunter.io/ios/app/phaes/id6771756758)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Insights monthly | $3.99 | per month |
| Monthly | $9.99 | per month |
| Yearly Insights | $29.99 | per year |
| Yearly | $69.99 | per year |


## Frequently asked questions

### Is Absolute Rest free?

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

### Is Phaes free?

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

### Do Absolute Rest or Phaes have ads?

Neither Absolute Rest nor Phaes shows ads.

### Which is updated more often, Absolute Rest or Phaes?

Absolute Rest ships an update every 3 weeks, and Phaes every 9 days. Most recently, Absolute Rest was updated on September 18, 2026 and Phaes 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.*