# Skill Tree vs CPAP Analysis

The clearest difference is monetization model: CPAP Analysis at freemium against Skill Tree's subscription. CPAP Analysis also leads on update cadence (every 9 days vs every 6 weeks) and ratings volume (7 vs 1). Skill Tree's advantage is iOS requirement (15.6 vs 26.2). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Skill Tree sells 2 in-app purchases, starting at $1.99 per month and CPAP Analysis sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Skill Tree against 5.0 for CPAP Analysis. That said, the two scores are not equally well evidenced: CPAP Analysis has 7 ratings behind it against 1, so its average is the more settled of the two.

Skill Tree ships an update every 6 weeks, CPAP Analysis every 9 days. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Skill Tree | CPAP Analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/skill-tree/id6758092779/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/cpap-analysis-tracker-and-log/id6759938653/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | Subscription | **Freemium** |
| Size | 58 MB | 56 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Jeffrey Byles](https://appshunter.io/developer/1767856053) | [Fellbeck Ltd](https://appshunter.io/developer/1833665126) |

## What reviewers say

### Skill Tree

[App page](https://appshunter.io/ios/app/skill-tree/id6758092779)

Visualize and strategize your Brazilian Jiu-Jitsu game with a custom mind map. Organize skills, highlight areas for focused training, and attach videos to moves. Progress faster by clearly mapping out your martial arts journey.

**Highlights:** Customizable mind map visualization, Color-coded skill categorization, Highlighting skills for deliberate training, Video attachment for moves, Progress tracking for BJJ game

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Yearly Plan | $14.99 | per year |


### CPAP Analysis

[App page](https://appshunter.io/ios/app/cpap-analysis-tracker-and-log/id6759938653)

Easily import and analyze your CPAP machine's data directly on your iPhone. Track events, pressure, SpO2, and sleep trends. Integrates with Apple Health and allows secure data sharing.

**Highlights:** SD card data import, Event breakdown by type, Leak rate and pressure tracking, Respiratory metrics, SpO2 and pulse monitoring, Apple Health integration, Secure data sharing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CPAP Analysis Monthly Subscription | $5.99 | per month |
| CPAP Analysis Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is Skill Tree free?

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

### Is CPAP Analysis free?

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

### Which has better reviews, Skill Tree or CPAP Analysis?

Skill Tree and CPAP Analysis are both rated 5.0 out of 5 on the App Store, from 1 and 7 ratings respectively.

### Do Skill Tree or CPAP Analysis have ads?

Neither Skill Tree nor CPAP Analysis shows ads.

### Which is updated more often, Skill Tree or CPAP Analysis?

Skill Tree ships an update every 6 weeks, and CPAP Analysis every 9 days. Most recently, Skill Tree was updated on September 24, 2026 and CPAP Analysis on October 1, 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.*