# CDO Fitness vs Skill Tree

The clearest difference is in-app purchases: CDO Fitness at none against Skill Tree's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Skill Tree sells 2 in-app purchases, starting at $1.99 per month. CDO Fitness asks for nothing beyond the download.

CDO Fitness ships an update monthly, Skill Tree every 6 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CDO Fitness | Skill Tree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skill-tree/id6758092779/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | — | Subscription |
| Size | 117 MB | 58 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JUSTBPXPORT, S.L.](https://appshunter.io/developer/1821450477) | [Jeffrey Byles](https://appshunter.io/developer/1767856053) |

## What reviewers say

### CDO Fitness

[App page](https://appshunter.io/ios/app/cdo-fitness/id6747883784)

**Features:** Apple Wallet

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is CDO Fitness free?

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

### Is Skill Tree free?

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

### Do CDO Fitness or Skill Tree have ads?

Neither CDO Fitness nor Skill Tree shows ads.

### Which is updated more often, CDO Fitness or Skill Tree?

CDO Fitness ships an update monthly, and Skill Tree every 6 weeks. Most recently, CDO Fitness was updated on November 8, 2026 and Skill Tree on October 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.*